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create a program that determines the largest three numbers assigned to variables a,b and c and display the largest number matlab

PuTI / 2025-03-17

create a program that determines the largest three numbers assigned to variables A,B and C and display the largest number matlabcreate a program that determines the largest three numbers assigned to variables A,B and C and display the largest number matlab create a program that determines the largest three numbers assigned to variables A,B and C and display the largest number matlab homework MATLAB Answers — New Questions

Matlab News

I have the error “Unexepected Matlab expression”, how can I solve it ?

PuTI / 2025-03-17

Hi everyone, I’m trying to build a custom block with the following code :
component pelton_turbine
% Ce composant calcule le couple généré par l’eau sur la turbine.
% 🔹 Déclaration des ports
nodes
H = foundation.hydraulic.hydraulic; % Port hydraulique
R = foundation.mechanical.rotational.rotational; % Port mécanique rotatif
end
% 🔹 Déclaration des paramètres
parameters
eta = {0.85, ‘1’}; % Rendement de la turbine
rho = {1000, ‘kg/m^3’}; % Densité de l’eau
r = {0.5, ‘m’}; % Rayon moyen de la roue
end
% 🔹 Déclaration des variables internes
variables
T = {0, ‘N*m’}; % Couple généré
Q = {0, ‘m^3/s’}; % Débit volumique
H_head = {0, ‘m’}; % Hauteur d’eau équivalente
end
% 🔹 Bloc des équations
equations
Q == H.q; % Débit entrant dans le port hydraulique

H_head == H.p / (rho * 9.81); % Calcul de la hauteur d’eau équivalente

T == eta * rho * Q * H_head * r; % Formule du couple hydraulique

R.tau == T; % Appliquer le couple sur l’axe mécanique
end
endcomponent

I keep having the same error : Unexepected Matlab expression for the last line (‘endcomponent’). I have already checked a lot of sources of error (hidden spaces, checking that the path is good…). Do you have any idea of what might be wrong ?
Thanks in advance,
NilsHi everyone, I’m trying to build a custom block with the following code :
component pelton_turbine
% Ce composant calcule le couple généré par l’eau sur la turbine.
% 🔹 Déclaration des ports
nodes
H = foundation.hydraulic.hydraulic; % Port hydraulique
R = foundation.mechanical.rotational.rotational; % Port mécanique rotatif
end
% 🔹 Déclaration des paramètres
parameters
eta = {0.85, ‘1’}; % Rendement de la turbine
rho = {1000, ‘kg/m^3’}; % Densité de l’eau
r = {0.5, ‘m’}; % Rayon moyen de la roue
end
% 🔹 Déclaration des variables internes
variables
T = {0, ‘N*m’}; % Couple généré
Q = {0, ‘m^3/s’}; % Débit volumique
H_head = {0, ‘m’}; % Hauteur d’eau équivalente
end
% 🔹 Bloc des équations
equations
Q == H.q; % Débit entrant dans le port hydraulique

H_head == H.p / (rho * 9.81); % Calcul de la hauteur d’eau équivalente

T == eta * rho * Q * H_head * r; % Formule du couple hydraulique

R.tau == T; % Appliquer le couple sur l’axe mécanique
end
endcomponent

I keep having the same error : Unexepected Matlab expression for the last line (‘endcomponent’). I have already checked a lot of sources of error (hidden spaces, checking that the path is good…). Do you have any idea of what might be wrong ?
Thanks in advance,
Nils Hi everyone, I’m trying to build a custom block with the following code :
component pelton_turbine
% Ce composant calcule le couple généré par l’eau sur la turbine.
% 🔹 Déclaration des ports
nodes
H = foundation.hydraulic.hydraulic; % Port hydraulique
R = foundation.mechanical.rotational.rotational; % Port mécanique rotatif
end
% 🔹 Déclaration des paramètres
parameters
eta = {0.85, ‘1’}; % Rendement de la turbine
rho = {1000, ‘kg/m^3’}; % Densité de l’eau
r = {0.5, ‘m’}; % Rayon moyen de la roue
end
% 🔹 Déclaration des variables internes
variables
T = {0, ‘N*m’}; % Couple généré
Q = {0, ‘m^3/s’}; % Débit volumique
H_head = {0, ‘m’}; % Hauteur d’eau équivalente
end
% 🔹 Bloc des équations
equations
Q == H.q; % Débit entrant dans le port hydraulique

H_head == H.p / (rho * 9.81); % Calcul de la hauteur d’eau équivalente

T == eta * rho * Q * H_head * r; % Formule du couple hydraulique

R.tau == T; % Appliquer le couple sur l’axe mécanique
end
endcomponent

Matlab News

Implementing MRAC for Robotic arm of unknown link lengths

PuTI / 2025-03-17

Hi! I am currently trying to implement MRAC in Simulink for a 3DOF robotic arm, but I’m a bit confused on the block connections and deriving the reference model.
For the reference model im using a 2nd order equation because the system in non linear, but if link length is unknown how do I implement the adaptive control because to use transfer functions the values should be known? The reference model im trying to implement is : b /s^2 +2s + b
This is my model with PID, but if I want to replace PID with MARC where should I connect the block?Hi! I am currently trying to implement MRAC in Simulink for a 3DOF robotic arm, but I’m a bit confused on the block connections and deriving the reference model.
For the reference model im using a 2nd order equation because the system in non linear, but if link length is unknown how do I implement the adaptive control because to use transfer functions the values should be known? The reference model im trying to implement is : b /s^2 +2s + b
This is my model with PID, but if I want to replace PID with MARC where should I connect the block? Hi! I am currently trying to implement MRAC in Simulink for a 3DOF robotic arm, but I’m a bit confused on the block connections and deriving the reference model.
For the reference model im using a 2nd order equation because the system in non linear, but if link length is unknown how do I implement the adaptive control because to use transfer functions the values should be known? The reference model im trying to implement is : b /s^2 +2s + b
This is my model with PID, but if I want to replace PID with MARC where should I connect the block? marc, matlab, simulink, control, robotics, adaptive control MATLAB Answers — New Questions

Matlab News

Shapley Values for svm classification with 10 Kfold

PuTI / 2025-03-17

Hi,
I would like to compute Shapley Values with SVM tested with Kfold= 10. Here my code:
load fisheriris
inds = ~strcmp(species,’setosa’);
X = meas(inds,3:4);
y = species(inds);
SVMModel = fitcsvm(X,y,Kfold=10);
explainer = shapley(SVMModel);
How I can solve this?Hi,
I would like to compute Shapley Values with SVM tested with Kfold= 10. Here my code:
load fisheriris
inds = ~strcmp(species,’setosa’);
X = meas(inds,3:4);
y = species(inds);
SVMModel = fitcsvm(X,y,Kfold=10);
explainer = shapley(SVMModel);
How I can solve this? Hi,
I would like to compute Shapley Values with SVM tested with Kfold= 10. Here my code:
load fisheriris
inds = ~strcmp(species,’setosa’);
X = meas(inds,3:4);
y = species(inds);
SVMModel = fitcsvm(X,y,Kfold=10);
explainer = shapley(SVMModel);
How I can solve this? shapley, svm, kfold MATLAB Answers — New Questions

Matlab News

Design of smart meters to curb electricity issues

PuTI / 2025-03-17

Working on designing a smart meter to curb electricity connections and power issuesWorking on designing a smart meter to curb electricity connections and power issues Working on designing a smart meter to curb electricity connections and power issues electric_motor_control MATLAB Answers — New Questions

News

Time to Remove the Old Report Message Add-Ins

Tony Redmond / 2025-03-17

Report Message and Report Phishing Deemed Unsafe by Microsoft

Message center notification MC1030003 (12 March 2025) brings news that the built-in Report button (Figure 1) is available for all Outlook clients (from these versions on). The older Report Message and Report Phishing add-ins are now in maintenance mode. Although they continue to work, Microsoft recommends that the add-ins should be removed before the time comes when Microsoft retires and finally removes the now-obsolete add-ins.

The built-in Report button in Outlook classic. — Figure 1: The built-in Report button in Outlook classic

Microsoft cites many benefits for the new Report button, including support for reporting email delivered to shared mailboxes, better localization, and the ability to report messages from different places, like the preview window. My favorite is that users can’t report their own messages as junk because Outlook disables the Report button for messages sent by the mailbox owner. For now, this feature only seems to work in OWA and the new Outlook and sometimes it doesn’t work, but it’s certainly a good thing.

If users don’t see the Report button, it could be that the user reported settings in the Microsoft Defender portal need to be adjusted. These settings control whether users can submit messages suspected to be junk email or phishing attempts to Microsoft for analysis.

Some organizations don’t permit people to report email because they don’t want Microsoft personnel to be able to read the reported messages. That’s certainly a valid perspective, but phishing techniques evolve on an ongoing basis and a reported message could disclose a new technique that allows Exchange Online Protection to detect and block dangerous content. Overall, I think it’s best to allow users to report bad email.

Unsafe Add-ins

Rather alarmingly, the FAQ for the built-in Report button says that “there are security issues with the add-in which makes them unsafe for the organization” without saying or even hinting what those issues might be. The FAQ also says that the add-ins “can’t architecturally support functionality that customers keep asking for.” Again, no further information is given to back up the claim. It’s more likely that the problem is that these add-ins are COM-based. Microsoft is dumping this technology as it moves forward with the new Outlook for Windows.

Checking the Report Add-ins

Unless good reason exists not to use built-in client functionality, it’s best to use it rather than add-ins. Given the profusion of integrated apps that could appear in tenants due to Copilot agents, administrators are likely to be busy managing those apps. Getting rid of a few obsolete add-ins won’t ease the agent burden, but it’s step in the right direction.

Taking my own advice to heart, I checked in the Integrated apps section of the Microsoft 365 admin center to see if the Report Message and Report Phishing add-ins were still in use. As you can see from Figure 2, just one active user was detected.

Details of usage for the Report Phishing add-in. — Figure 2: Details of usage for the Report Phishing add-in

The download option creates a CSV file that gives some details about the app and when it was used, but it doesn’t point to who is using the app. The app properties might be configured to allow access to the add-in to specific users or groups, and that could give a clue to who might be using it. But you’re out of luck if the app is configured for tenant-wide access.

Removing an Add-in

It’s always best to let users know that a change in coming. Microsoft says that people prefer the single Report button. In any case, changing from the add-in to the built-in report button shouldn’t prove too difficult for anyone, so I went ahead and removed the add-in from the set of Integrated apps (Figure 3).

Removing the Report Phishing add-in. — Figure 3: Removing the Report Phishing add-in

It takes some time for a change like this to make its way to clients. Microsoft documentation says that it can take up to 24 hours before a newly deployed app appears in a client. The same applies to app deletions. My experience is that it can take longer before all clients receive updates. However, removed add-ins should disappear in a couple of days.

I’m glad to report that the removal of the old Report Phishing add-in from my tenant went according to plan. No squawking from annoyed users has happened so far. Maybe they haven’t noticed the change yet.

Insight like this doesn’t come easily. You’ve got to know the technology and understand how to look behind the scenes. Benefit from the knowledge and experience of the Office 365 for IT Pros team by subscribing to the best eBook covering Office 365 and the wider Microsoft 365 ecosystem.

Matlab News

Conditional RTE Write of structure in AUTOSAR Generated Code

PuTI / 2025-03-16

I would like to generate code with the "Rte_Write" call inside an "if" statement. , but output should be strcuture datatype. Problem is Autosar generator will not allow me to use virtual port in this case and RTE Write is always located on end of main runnable, not in if statement.

Error:When model ‘COMH_Mini’ has function-call root-level Inport blocks, or is set up to export functions, the input signal to the root-level Outport block ‘COMH_Mini/COMH_sigGroup_CAN_H2CU_33_CINV100msNo01_COMH_sigGroup_CAN_H2CU_33_CINV100msNo01’ cannot be a virtual bus. Consider replacing this Outport block with an Out Bus Element block, or making the input signal a nonvirtual bus.I would like to generate code with the "Rte_Write" call inside an "if" statement. , but output should be strcuture datatype. Problem is Autosar generator will not allow me to use virtual port in this case and RTE Write is always located on end of main runnable, not in if statement.

Error:When model ‘COMH_Mini’ has function-call root-level Inport blocks, or is set up to export functions, the input signal to the root-level Outport block ‘COMH_Mini/COMH_sigGroup_CAN_H2CU_33_CINV100msNo01_COMH_sigGroup_CAN_H2CU_33_CINV100msNo01’ cannot be a virtual bus. Consider replacing this Outport block with an Out Bus Element block, or making the input signal a nonvirtual bus. I would like to generate code with the "Rte_Write" call inside an "if" statement. , but output should be strcuture datatype. Problem is Autosar generator will not allow me to use virtual port in this case and RTE Write is always located on end of main runnable, not in if statement.

Matlab News

To pass a variable outside a parfor loop

PuTI / 2025-03-16

I have a loop that looks like:
parfor j=1:length(P)
for i=1:(length(A)-1)
%unnecessary calculations
for i=1:(length(A)-1)
end
for k=1:(length(B)-1)
ri(k,l)=len(k); %len is a vector, that has been defined already
sr(1,i)=r(i); %r is a vector, that has been defined already
end
%unnecessary calculations
end
%unnecessary calculations
end
plot(ri,sr); %I know that these two vectors have different dimensions, it’s just example to show, that I use variables outside parfor
%loop. By the way, I use the variables in functions "plot" and "meshgrid"

So I tried to use cell arrays as Walter Roberson recommend:
%in my program (length(A)-1)=40, (length(B)-1) = 10;
ri=cell(10,40); sr=cell(1,40);
parfor j=1:length(P)
for i=1:(length(A)-1)
for k=1:(length(B)-1)
ri{k,l}=len(k);
sr{1,i}=r(i);
end
end
end
ri1=cell2mat(ri);
sr1=cell2mat(sr); %last two lines are my own ideas I don’t know good or bad
plot(ri1,sr1);
And matlab writes that because of the way of using variables the parfor loop can’t be executed. It writes the same as before changing the code.
The main error is "Unable to classify the variable ‘ri’ in the body of the parfor-loop". Can you help me, please?I have a loop that looks like:
parfor j=1:length(P)
for i=1:(length(A)-1)
%unnecessary calculations
for i=1:(length(A)-1)
end
for k=1:(length(B)-1)
ri(k,l)=len(k); %len is a vector, that has been defined already
sr(1,i)=r(i); %r is a vector, that has been defined already
end
%unnecessary calculations
end
%unnecessary calculations
end
plot(ri,sr); %I know that these two vectors have different dimensions, it’s just example to show, that I use variables outside parfor
%loop. By the way, I use the variables in functions "plot" and "meshgrid"

So I tried to use cell arrays as Walter Roberson recommend:
%in my program (length(A)-1)=40, (length(B)-1) = 10;
ri=cell(10,40); sr=cell(1,40);
parfor j=1:length(P)
for i=1:(length(A)-1)
for k=1:(length(B)-1)
ri{k,l}=len(k);
sr{1,i}=r(i);
end
end
end
ri1=cell2mat(ri);
sr1=cell2mat(sr); %last two lines are my own ideas I don’t know good or bad
plot(ri1,sr1);
And matlab writes that because of the way of using variables the parfor loop can’t be executed. It writes the same as before changing the code.
The main error is "Unable to classify the variable ‘ri’ in the body of the parfor-loop". Can you help me, please? I have a loop that looks like:
parfor j=1:length(P)
for i=1:(length(A)-1)
%unnecessary calculations
for i=1:(length(A)-1)
end
for k=1:(length(B)-1)
ri(k,l)=len(k); %len is a vector, that has been defined already
sr(1,i)=r(i); %r is a vector, that has been defined already
end
%unnecessary calculations
end
%unnecessary calculations
end
plot(ri,sr); %I know that these two vectors have different dimensions, it’s just example to show, that I use variables outside parfor
%loop. By the way, I use the variables in functions "plot" and "meshgrid"

Matlab News

Plotting a 3d network model using graph

PuTI / 2025-03-16

I want to plot a 3 dimensional network model using the graph function.
for example
edges1 = [1,1,1,2,2,2,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,10,11,11,11];
egdes2 = [2,3,4,3,4,5,6,7,8,9,4,5,6,10,11,12,7,8,10,11,13,6,8,9,11,12,14,8,9,11,13,14,11,12,13,14];
x = [0,0,0.5000,0.5000,0,0.5000,0,0.5000,0,1.0000,1.0000,1.0000,1.0000,1.0000];
y = [0,0.5000,0,0.5000,0,0.5000,1.0000,1.0000,1.0000,0,0.5000,0,1.0000,1.0000];
z = [0,0.5000,0.5000,0,1.0000,1.0000,0,0.5000,1.0000,0,0.5000,1.0000,0,1.0000];
G = graph(edges1,egdes2);
plot(G,’Xdata’,x,’Ydata’,y,’Zdata’,z)

However, the line visualization does not give good depth percepsion, and 3d structure can only be percieved when roatating the image.
I’m looking for a way to give the edges some volume to improve visualization, without making the image too heavy to handle.
Is there a neat way to do this?
Thanks!I want to plot a 3 dimensional network model using the graph function.
for example
edges1 = [1,1,1,2,2,2,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,10,11,11,11];
egdes2 = [2,3,4,3,4,5,6,7,8,9,4,5,6,10,11,12,7,8,10,11,13,6,8,9,11,12,14,8,9,11,13,14,11,12,13,14];
x = [0,0,0.5000,0.5000,0,0.5000,0,0.5000,0,1.0000,1.0000,1.0000,1.0000,1.0000];
y = [0,0.5000,0,0.5000,0,0.5000,1.0000,1.0000,1.0000,0,0.5000,0,1.0000,1.0000];
z = [0,0.5000,0.5000,0,1.0000,1.0000,0,0.5000,1.0000,0,0.5000,1.0000,0,1.0000];
G = graph(edges1,egdes2);
plot(G,’Xdata’,x,’Ydata’,y,’Zdata’,z)

However, the line visualization does not give good depth percepsion, and 3d structure can only be percieved when roatating the image.
I’m looking for a way to give the edges some volume to improve visualization, without making the image too heavy to handle.
Is there a neat way to do this?
Thanks! I want to plot a 3 dimensional network model using the graph function.
for example
edges1 = [1,1,1,2,2,2,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,10,11,11,11];
egdes2 = [2,3,4,3,4,5,6,7,8,9,4,5,6,10,11,12,7,8,10,11,13,6,8,9,11,12,14,8,9,11,13,14,11,12,13,14];
x = [0,0,0.5000,0.5000,0,0.5000,0,0.5000,0,1.0000,1.0000,1.0000,1.0000,1.0000];
y = [0,0.5000,0,0.5000,0,0.5000,1.0000,1.0000,1.0000,0,0.5000,0,1.0000,1.0000];
z = [0,0.5000,0.5000,0,1.0000,1.0000,0,0.5000,1.0000,0,0.5000,1.0000,0,1.0000];
G = graph(edges1,egdes2);
plot(G,’Xdata’,x,’Ydata’,y,’Zdata’,z)

Matlab News

How can I control a revolute joint with a stepper motor ?

PuTI / 2025-03-15

Hello, I want to control a stage which is actuated by a lead screw and stepper motor. Ideally, I need to specify the velocity of the stage or angular velocity of the rotational joint 1 so that it rotates the screw. I used simscape to generate the block diagram from my CAD model from onshape (link below). Is there any way of doing this ? I have tried using the stepper motor model from the simelectronics library but had trouble connecting it to the joint.

Simscape model:
https://drive.google.com/open?id=1WBuGkkchPfXhgrx0C9gV4moEqcxCi6hq

CAD model:
https://cad.onshape.com/documents/d5ee5d8b466e6650b9cfdac4/w/b05ebd7e69bda94f37ce5c0e/e/71f3ef6f9e38afb071c64dfd

Thank youHello, I want to control a stage which is actuated by a lead screw and stepper motor. Ideally, I need to specify the velocity of the stage or angular velocity of the rotational joint 1 so that it rotates the screw. I used simscape to generate the block diagram from my CAD model from onshape (link below). Is there any way of doing this ? I have tried using the stepper motor model from the simelectronics library but had trouble connecting it to the joint.

Simscape model:
https://drive.google.com/open?id=1WBuGkkchPfXhgrx0C9gV4moEqcxCi6hq

CAD model:
https://cad.onshape.com/documents/d5ee5d8b466e6650b9cfdac4/w/b05ebd7e69bda94f37ce5c0e/e/71f3ef6f9e38afb071c64dfd

Thank you Hello, I want to control a stage which is actuated by a lead screw and stepper motor. Ideally, I need to specify the velocity of the stage or angular velocity of the rotational joint 1 so that it rotates the screw. I used simscape to generate the block diagram from my CAD model from onshape (link below). Is there any way of doing this ? I have tried using the stepper motor model from the simelectronics library but had trouble connecting it to the joint.

Simscape model:
https://drive.google.com/open?id=1WBuGkkchPfXhgrx0C9gV4moEqcxCi6hq

CAD model:
https://cad.onshape.com/documents/d5ee5d8b466e6650b9cfdac4/w/b05ebd7e69bda94f37ce5c0e/e/71f3ef6f9e38afb071c64dfd

Thank you simscape, stepper, motor, simelectronics, revolute, joint, power_electronics_control, electric_motor_control MATLAB Answers — New Questions

Matlab News

How to plan path in Cartesian coordinate for robotic manipulator

PuTI / 2025-03-15

I uploaded a 6Dof robotic arm rigid tree to matlab simulink , now i need to move the end effector in the shape ‘ M ‘ . How do i obtain the waypoints of the shape ‘ M ‘I uploaded a 6Dof robotic arm rigid tree to matlab simulink , now i need to move the end effector in the shape ‘ M ‘ . How do i obtain the waypoints of the shape ‘ M ‘ I uploaded a 6Dof robotic arm rigid tree to matlab simulink , now i need to move the end effector in the shape ‘ M ‘ . How do i obtain the waypoints of the shape ‘ M ‘ pathplanning, waypoints MATLAB Answers — New Questions

Matlab News

Convert triangular matlab mesh into .msh file

PuTI / 2025-03-15

I have generated a 2D triangular mesh in matlab, however, I need to find a way to convert it into a .msh file. I have been searching for ages but haven’t found any way to do this. I think the easiest way to convert it into a .msh file would be in GMSH but I can’t find a way to upload the mesh into GMSH. I’m open to any alternatives.
Many thanks.I have generated a 2D triangular mesh in matlab, however, I need to find a way to convert it into a .msh file. I have been searching for ages but haven’t found any way to do this. I think the easiest way to convert it into a .msh file would be in GMSH but I can’t find a way to upload the mesh into GMSH. I’m open to any alternatives.
Many thanks. I have generated a 2D triangular mesh in matlab, however, I need to find a way to convert it into a .msh file. I have been searching for ages but haven’t found any way to do this. I think the easiest way to convert it into a .msh file would be in GMSH but I can’t find a way to upload the mesh into GMSH. I’m open to any alternatives.
Many thanks. mesh, model, export, file MATLAB Answers — New Questions

Matlab News

Can the standard Soft Actor Critic (SAC) algorithm in Matlab be adapted for hybrid action spaces, or is there another reinforcement learning algorithm in Matlab that is better

PuTI / 2025-03-15

The current implementation of the Soft Actor Critic (SAC) algorithm in Matlab is designed only for problems with continuous or discrete action spaces. I’m facing a problem that requires dealing with hybrid action spaces, where some actions are continuous and others are discrete. I am aware that implementations of SAC that accommodate hybrid action spaces have been suggested in the literature. Is it feasible to modify the standard Matlab implementations to handle hybrid actions? If not, is there another reinforcement learning algorithm available in Matlab that is suitable for addressing hybrid action spaces?The current implementation of the Soft Actor Critic (SAC) algorithm in Matlab is designed only for problems with continuous or discrete action spaces. I’m facing a problem that requires dealing with hybrid action spaces, where some actions are continuous and others are discrete. I am aware that implementations of SAC that accommodate hybrid action spaces have been suggested in the literature. Is it feasible to modify the standard Matlab implementations to handle hybrid actions? If not, is there another reinforcement learning algorithm available in Matlab that is suitable for addressing hybrid action spaces? The current implementation of the Soft Actor Critic (SAC) algorithm in Matlab is designed only for problems with continuous or discrete action spaces. I’m facing a problem that requires dealing with hybrid action spaces, where some actions are continuous and others are discrete. I am aware that implementations of SAC that accommodate hybrid action spaces have been suggested in the literature. Is it feasible to modify the standard Matlab implementations to handle hybrid actions? If not, is there another reinforcement learning algorithm available in Matlab that is suitable for addressing hybrid action spaces? hybird reinforcement learning MATLAB Answers — New Questions

Matlab News

Issue with serial communication blocks from support package for arduino nano(CH340 clone)

PuTI / 2025-03-14

I’m using arduino nano(ch340) and implementing serial communication with the Raspberry Pi 4B. I’m using USB cable rather than onboard uart pins. I’ve been trying to send data through serial transmit block (from nano) but no results at all. You cannot use ‘monitor and tune’ so only been reading the data(in both Arduino ide’s serial monitor and rasp pi’s terminal) after uploading the model.
The output in serial monitor is gibberish (boxes) while in terminal(screen) it is not visible at all. I generated a model for rasp pi with serial read block from support package where data is zero and status port indicates ‘data not available’. Tried all three modes for transmit block: write, print, println, but same results. I programmed a test program in arduino ide with serial.println function which was successfully displayed results in both terminal and display from rasp pi simulink model. I’ve successfully implemented basic test models like ‘led blink’ in simulink for arduino so my inference is that the problem is only with serial transmit block and its generated code.
My aim is to establish bidirectional serial communication between Raspberry pi and arduino nano, to exchange multiple values simultaneously(probably having different data types) in an array and separate them for their intended use.I’m using arduino nano(ch340) and implementing serial communication with the Raspberry Pi 4B. I’m using USB cable rather than onboard uart pins. I’ve been trying to send data through serial transmit block (from nano) but no results at all. You cannot use ‘monitor and tune’ so only been reading the data(in both Arduino ide’s serial monitor and rasp pi’s terminal) after uploading the model.
The output in serial monitor is gibberish (boxes) while in terminal(screen) it is not visible at all. I generated a model for rasp pi with serial read block from support package where data is zero and status port indicates ‘data not available’. Tried all three modes for transmit block: write, print, println, but same results. I programmed a test program in arduino ide with serial.println function which was successfully displayed results in both terminal and display from rasp pi simulink model. I’ve successfully implemented basic test models like ‘led blink’ in simulink for arduino so my inference is that the problem is only with serial transmit block and its generated code.
My aim is to establish bidirectional serial communication between Raspberry pi and arduino nano, to exchange multiple values simultaneously(probably having different data types) in an array and separate them for their intended use. I’m using arduino nano(ch340) and implementing serial communication with the Raspberry Pi 4B. I’m using USB cable rather than onboard uart pins. I’ve been trying to send data through serial transmit block (from nano) but no results at all. You cannot use ‘monitor and tune’ so only been reading the data(in both Arduino ide’s serial monitor and rasp pi’s terminal) after uploading the model.
The output in serial monitor is gibberish (boxes) while in terminal(screen) it is not visible at all. I generated a model for rasp pi with serial read block from support package where data is zero and status port indicates ‘data not available’. Tried all three modes for transmit block: write, print, println, but same results. I programmed a test program in arduino ide with serial.println function which was successfully displayed results in both terminal and display from rasp pi simulink model. I’ve successfully implemented basic test models like ‘led blink’ in simulink for arduino so my inference is that the problem is only with serial transmit block and its generated code.
My aim is to establish bidirectional serial communication between Raspberry pi and arduino nano, to exchange multiple values simultaneously(probably having different data types) in an array and separate them for their intended use. serial communication, arduino and raspberry pi MATLAB Answers — New Questions

Matlab News

Ezyfit: Single vs. Two-Step Fitting Problem

PuTI / 2025-03-14

Ezfit (actually I am using the updated version from Walter Roberson) fails to accurately determine all 4 parameters in a single curve fit (see Method A). A workaround, setting 1 parameter initially and then fitting the remaining 3 in a second step (Method B), looks instead successful.
Is there a method or setting within Ezfit to obtain accurate 4-parameter results in a single fitting run (Method A)?
% (1) Input Data
x = [6, 16, 26, 36, 46, 56, 66, 66, 76, 86, 96, 126, 176, 186, 246, 286, 306, 336, 366, 396, 426, 486, 496, 506, 546, 546, 616, 656, 726, 756, 806, 816, 836, 946, 966, 976, 1056, 1066, 1116, 1136, 1176, 1296, 1326, 1386, 1426, 1456, 1476, 1586, 1596, 1736, 1806, 1836, 1846, 1886, 2016, 2046, 2106, 2196, 2296, 2346, 2356, 2366, 2556, 2666, 2806, 2856, 2916, 2976, 3116, 3266, 3366, 3416, 3526, 3726, 3876, 3976, 4386, 4636, 4686, 5246, 5346, 6966];
y = [22.932, 13.063, 10.877, 8.7408, 7.4074, 5.8344, 12.693, 4.8185, 3.5444, 2.6637, 2.2515, 4.5284, 1.7597, 1.5207, 1.1754, 0.74499, 0.75637, 0.28157, 0.35862, 0.37542, 0.27759, 0.25008, 0.11389, 0.23569, 0.16777, 0.084717, 0.11865, 0.03168, 0.085227, 0.042803, 0.038632, 0.016028, 0.049869, 0.034689, 0.025157, 0.0064107, 0.017007, 0.0067062, 0.012242, 0.0065558, 0.014677, 0.0048147, 0.0048443, 0.0045972, 0.0059391, 0.0024968, 0.0050464, 0.0024622, 0.0053329, 0.0038574, 0.0035999, 0.0022632, 0.00147, 0.00098146, 0.0012814, 0.0024717, 0.00073639, 0.00073862, 0.0013448, 0.00088996, 0.00096546, 0.00084, 0.00062343, 0.0014789, 0.00050959, 0.00027922, 0.00055839, 0.0019602, 0.00098146, 0.00020941, 0.00028421, 0.00075468, 0.00031831, 0.00055524, 0.00055844, 0.00039789, 0.00031207, 0.00072048, 0.00021507, 0.0004718, 0.00018294, 0.00018086];

% (2) Method A: Perform a simple curve fitting with Ezfit
ft1 = ezfit(x,log(y),’log(a*x^(-b) + c*exp(-d*x))’,’MaxFunEvals’, 1e6, ‘MaxIter’, 1e6); %, ‘usega’, usega);
array2table([ft1.m(1) ft1.m(2) ft1.m(3) ft1.m(4) (ft1.r)^2],’VariableNames’,{‘a’,’b’,’c’,’d’,’R2′})
% a b c d R2
% _____ ______ ______ _____ _______
%
% 56106 2.2236 -85026 49582 0.85991

% (3) Method B: Perform curve fitting by using Ezfit 2 times
% (3.1) With the first Ezfit, find the exponent "b" (among a range of values between 1.5 and 2.5)
% which maximise the coefficient of determination R^2 (I set it as R^2 = 0.99).
% The resulting exponent will be "b_range(idx_max_b) = 1.86".
i = 1;
b_range = 1.5 : 0.01 : 2.5;
for b = b_range
ft2 = ezfit(x,log(y),sprintf(‘log(a*x^(-%.2f) + c*exp(-d*x))’,b),’options’,optimset(‘MaxFunEvals’, 1e6, ‘MaxIter’, 1e6));
ftr(i) = (ft2.r)^2;
i = i + 1;
end
idx_max_b = find(ftr == max(ftr(ftr < 0.99)));

% (3.2) Following the initial determination of the optimal exponent "b" (i.e. "b_range(idx_max_b)"),
% the second Ezfit step finds the remaining parameters
ft3 = ezfit(x,log(y),sprintf(‘log(a*x^(-%.2f) + c*exp(-d*x))’,b_range(idx_max_b)),’options’,optimset(‘MaxFunEvals’, 1e6, ‘MaxIter’, 1e6));
array2table([ft3.m(1) b_range(idx_max_b) ft3.m(2) ft3.m(3) (ft3.r)^2],’VariableNames’,{‘a’,’b’,’c’,’d’,’R2′})
% a b c d R2
% ______ ____ _____ _________ _______
%
% 2084.4 1.86 4.806 0.0064196 0.98323

% (4) Plot
hold on
plot(x, y, ‘o’, ‘MarkerFaceColor’,[0.7 0.7 0.7],’DisplayName’, ‘Input Data’);
xx = 10 : 10000;
plot(xx, ft1.m(1) .* xx.^(-ft1.m(2)) + ft1.m(3) .* exp(-ft1.m(4) .* xx), ‘color’,’blue’, ‘Linewidth’,2, ‘DisplayName’, ‘Method A’);
plot(xx, ft3.m(1) .* xx.^(-b_range(idx_max_b)) + ft3.m(2) .* exp(-ft3.m(3) .* xx), ‘color’, ‘red’, ‘Linewidth’,2, ‘DisplayName’, ‘Method B’)
xlabel(‘x’);
ylabel(‘y’);
legend(‘show’);
set(gca, ‘XScale’, ‘log’, ‘YScale’, ‘log’)Ezfit (actually I am using the updated version from Walter Roberson) fails to accurately determine all 4 parameters in a single curve fit (see Method A). A workaround, setting 1 parameter initially and then fitting the remaining 3 in a second step (Method B), looks instead successful.
Is there a method or setting within Ezfit to obtain accurate 4-parameter results in a single fitting run (Method A)?
% (1) Input Data
x = [6, 16, 26, 36, 46, 56, 66, 66, 76, 86, 96, 126, 176, 186, 246, 286, 306, 336, 366, 396, 426, 486, 496, 506, 546, 546, 616, 656, 726, 756, 806, 816, 836, 946, 966, 976, 1056, 1066, 1116, 1136, 1176, 1296, 1326, 1386, 1426, 1456, 1476, 1586, 1596, 1736, 1806, 1836, 1846, 1886, 2016, 2046, 2106, 2196, 2296, 2346, 2356, 2366, 2556, 2666, 2806, 2856, 2916, 2976, 3116, 3266, 3366, 3416, 3526, 3726, 3876, 3976, 4386, 4636, 4686, 5246, 5346, 6966];
y = [22.932, 13.063, 10.877, 8.7408, 7.4074, 5.8344, 12.693, 4.8185, 3.5444, 2.6637, 2.2515, 4.5284, 1.7597, 1.5207, 1.1754, 0.74499, 0.75637, 0.28157, 0.35862, 0.37542, 0.27759, 0.25008, 0.11389, 0.23569, 0.16777, 0.084717, 0.11865, 0.03168, 0.085227, 0.042803, 0.038632, 0.016028, 0.049869, 0.034689, 0.025157, 0.0064107, 0.017007, 0.0067062, 0.012242, 0.0065558, 0.014677, 0.0048147, 0.0048443, 0.0045972, 0.0059391, 0.0024968, 0.0050464, 0.0024622, 0.0053329, 0.0038574, 0.0035999, 0.0022632, 0.00147, 0.00098146, 0.0012814, 0.0024717, 0.00073639, 0.00073862, 0.0013448, 0.00088996, 0.00096546, 0.00084, 0.00062343, 0.0014789, 0.00050959, 0.00027922, 0.00055839, 0.0019602, 0.00098146, 0.00020941, 0.00028421, 0.00075468, 0.00031831, 0.00055524, 0.00055844, 0.00039789, 0.00031207, 0.00072048, 0.00021507, 0.0004718, 0.00018294, 0.00018086];

% (4) Plot
hold on
plot(x, y, ‘o’, ‘MarkerFaceColor’,[0.7 0.7 0.7],’DisplayName’, ‘Input Data’);
xx = 10 : 10000;
plot(xx, ft1.m(1) .* xx.^(-ft1.m(2)) + ft1.m(3) .* exp(-ft1.m(4) .* xx), ‘color’,’blue’, ‘Linewidth’,2, ‘DisplayName’, ‘Method A’);
plot(xx, ft3.m(1) .* xx.^(-b_range(idx_max_b)) + ft3.m(2) .* exp(-ft3.m(3) .* xx), ‘color’, ‘red’, ‘Linewidth’,2, ‘DisplayName’, ‘Method B’)
xlabel(‘x’);
ylabel(‘y’);
legend(‘show’);
set(gca, ‘XScale’, ‘log’, ‘YScale’, ‘log’) Ezfit (actually I am using the updated version from Walter Roberson) fails to accurately determine all 4 parameters in a single curve fit (see Method A). A workaround, setting 1 parameter initially and then fitting the remaining 3 in a second step (Method B), looks instead successful.
Is there a method or setting within Ezfit to obtain accurate 4-parameter results in a single fitting run (Method A)?
% (1) Input Data
x = [6, 16, 26, 36, 46, 56, 66, 66, 76, 86, 96, 126, 176, 186, 246, 286, 306, 336, 366, 396, 426, 486, 496, 506, 546, 546, 616, 656, 726, 756, 806, 816, 836, 946, 966, 976, 1056, 1066, 1116, 1136, 1176, 1296, 1326, 1386, 1426, 1456, 1476, 1586, 1596, 1736, 1806, 1836, 1846, 1886, 2016, 2046, 2106, 2196, 2296, 2346, 2356, 2366, 2556, 2666, 2806, 2856, 2916, 2976, 3116, 3266, 3366, 3416, 3526, 3726, 3876, 3976, 4386, 4636, 4686, 5246, 5346, 6966];
y = [22.932, 13.063, 10.877, 8.7408, 7.4074, 5.8344, 12.693, 4.8185, 3.5444, 2.6637, 2.2515, 4.5284, 1.7597, 1.5207, 1.1754, 0.74499, 0.75637, 0.28157, 0.35862, 0.37542, 0.27759, 0.25008, 0.11389, 0.23569, 0.16777, 0.084717, 0.11865, 0.03168, 0.085227, 0.042803, 0.038632, 0.016028, 0.049869, 0.034689, 0.025157, 0.0064107, 0.017007, 0.0067062, 0.012242, 0.0065558, 0.014677, 0.0048147, 0.0048443, 0.0045972, 0.0059391, 0.0024968, 0.0050464, 0.0024622, 0.0053329, 0.0038574, 0.0035999, 0.0022632, 0.00147, 0.00098146, 0.0012814, 0.0024717, 0.00073639, 0.00073862, 0.0013448, 0.00088996, 0.00096546, 0.00084, 0.00062343, 0.0014789, 0.00050959, 0.00027922, 0.00055839, 0.0019602, 0.00098146, 0.00020941, 0.00028421, 0.00075468, 0.00031831, 0.00055524, 0.00055844, 0.00039789, 0.00031207, 0.00072048, 0.00021507, 0.0004718, 0.00018294, 0.00018086];

Matlab News

MATLAB crashes whenever running simulation in a .slx file

PuTI / 2025-03-14

whenever I run the simulation in any simulink file (.slx) matlab crashes:
the crash log:

MATLAB Log File: C:UsersengmhAppDataLocalTempmatlab_crash_dump.12920-1

————————————————
MATLAB Log File
————————————————

——————————————————————————–
Access violation detected at 2022-04-07 06:39:14 +0200
——————————————————————————–

Configuration:
Crash Decoding : Disabled – No sandbox or build area path
Crash Mode : continue (default)
Default Encoding : windows-1252
Deployed : false
Graphics Driver : Unknown hardware
Graphics card 1 : NVIDIA ( 0x10de ) NVIDIA GeForce RTX 2060 Version 30.0.15.1215 (2022-3-17)
Java Version : Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
MATLAB Architecture : win64
MATLAB Entitlement ID : 6257193
MATLAB Root : C:Program FilesPolyspaceR2021a
MATLAB Version : 9.10.0.1602886 (R2021a)
OpenGL : hardware
Operating System : Microsoft Windows 11 Home
Process ID : 12920
Processor ID : x86 Family 6 Model 158 Stepping 10, GenuineIntel
Window System : Version 10.0 (Build 22000)

Fault Count: 1

Abnormal termination:
Access violation

Current Thread: ‘MCR 0 interpreter thread’ id 15084

Register State (from fault):
RAX = 00007ffd8c1f1ad0 RBX = 0000001d48cf9760
RCX = 0000020ee0bd5480 RDX = 0000020e276d0000
RSP = 0000001d48cf8c38 RBP = 0000001d48cf8d70
RSI = 0000001d48cf9120 RDI = 0000001d48cf9760

R8 = 0000020e27645280 R9 = 0000000000000001
R10 = 0000020e27640000 R11 = 0000001d48cf8ba0
R12 = 0000000000000000 R13 = 0000000000000001
R14 = 0000020ee1632d70 R15 = 0000020ee3413e60

RIP = 00007ffd88c856c6 EFL = 00010206

CS = 0033 FS = 0053 GS = 002b

Stack Trace (from fault):
[ 0] 0x00007ffd88c856c6 C:Program FilesPolyspaceR2021abinwin64sl_graphical_classes.dll+06510278 BDConfigSetInfo::getRTWComponent+00000086
[ 1] 0x0000020ee163323c <unknown-module>+00000000
[ 2] 0x00007ffd88344873 C:Program FilesPolyspaceR2021abinwin64sl_engine_classes.dll+05130355 XFormScope::apply+00011443
[ 3] 0x00007ffd87f3cb84 C:Program FilesPolyspaceR2021abinwin64sl_engine_classes.dll+00904068 getSlEngineEventPair+00002692
[ 4] 0x00007ffd87f269b0 C:Program FilesPolyspaceR2021abinwin64sl_engine_classes.dll+00813488 ssSetGrBlkMaxFreqHz+00004336
[ 5] 0x00007ffd87f360c9 C:Program FilesPolyspaceR2021abinwin64sl_engine_classes.dll+00876745 slplugin::MasterCompEvent::~MasterCompEvent+00004329
[ 6] 0x00007ffd87f2ad6d C:Program FilesPolyspaceR2021abinwin64sl_engine_classes.dll+00830829 ssSetGrBlkMaxFreqHz+00021677
[ 7] 0x00007ffd87f37760 C:Program FilesPolyspaceR2021abinwin64sl_engine_classes.dll+00882528 slplugin::ProcessEngineEvent+00000336
[ 8] 0x00007ffd87f3a041 C:Program FilesPolyspaceR2021abinwin64sl_engine_classes.dll+00892993 bdPostEngineEvent+00000209
[ 9] 0x00007ffd7dc9f280 C:Program FilesPolyspaceR2021abinwin64sl_compile.dll+03469952 SLOutportWithFcnCallInitPassThru::throwErrorOnInvalidICSrc+00002720
[ 10] 0x00007ffd7dce3dcb C:Program FilesPolyspaceR2021abinwin64sl_compile.dll+03751371 VarHiddenConnectionInfo::setNIForRemoval+00010315
[ 11] 0x00007ffd7dce3f88 C:Program FilesPolyspaceR2021abinwin64sl_compile.dll+03751816 VarHiddenConnectionInfo::setNIForRemoval+00010760
[ 12] 0x00007ffd7dc8722a C:Program FilesPolyspaceR2021abinwin64sl_compile.dll+03371562 SLCompDiagramImpl+00040618
[ 13] 0x00007ffd7dc7d68a C:Program FilesPolyspaceR2021abinwin64sl_compile.dll+03331722 SLCompDiagramImpl+00000778
[ 14] 0x00007ffd895fd146 C:Program FilesPolyspaceR2021abinwin64sl_link_bd.dll+01102150 slink::CreateSlModelForLink+00000758
[ 15] 0x00007ffd895fce73 C:Program FilesPolyspaceR2021abinwin64sl_link_bd.dll+01101427 slink::CreateSlModelForLink+00000035
[ 16] 0x00007ffd8bbf3ee4 C:Program FilesPolyspaceR2021abinwin64libmwsimulink.dll+15810276 slstSetOutputPortRateID+00130612
[ 17] 0x00007ffd8bbf9d26 C:Program FilesPolyspaceR2021abinwin64libmwsimulink.dll+15834406 slstSetOutputPortRateID+00154742
[ 18] 0x00007ffd8bc004a7 C:Program FilesPolyspaceR2021abinwin64libmwsimulink.dll+15860903 slstSetOutputPortRateID+00181239
[ 19] 0x00007ffd8bc3bcf2 C:Program FilesPolyspaceR2021abinwin64libmwsimulink.dll+16104690 slstSetOutputPortRateID+00425026
[ 20] 0x00007ffd8b031022 C:Program FilesPolyspaceR2021abinwin64libmwsimulink.dll+03477538 ExitPauseInDebuggerMenuSim+00001346
[ 21] 0x00007ffd8b803706 C:Program FilesPolyspaceR2021abinwin64libmwsimulink.dll+11679494 SLGlue::simulationStartPauseContinueNARMode+00000182
[ 22] 0x00007ffd60cf5509 C:Program FilesPolyspaceR2021abinwin64sl_mi.dll+00349449 SLM3I::mi::initCosSFBlockOpenNotification+00074009
[ 23] 0x00007ffdb156d42e binwin64pgomcos_impl.dll+00381998
[ 24] 0x00007ffdb156c9d5 binwin64pgomcos_impl.dll+00379349
[ 25] 0x00007ffdb156c670 binwin64pgomcos_impl.dll+00378480
[ 26] 0x00007ffdb15ad543 binwin64pgomcos_impl.dll+00644419 mdMethodListAllFcn+00084595
[ 27] 0x00007ffdb15ad458 binwin64pgomcos_impl.dll+00644184 mdMethodListAllFcn+00084360
[ 28] 0x00007ffdb15ad33e binwin64pgomcos_impl.dll+00643902 mdMethodListAllFcn+00084078
[ 29] 0x00007ffdb157083d binwin64pgomcos_impl.dll+00395325 mdIsA+00002017
[ 30] 0x00007ffdcb434630 binwin64pgom_dispatcher.dll+00083504 Mfh_MATLAB_fn_impl::ensure_loading_of_load_module+00001856
[ 31] 0x00007ffdcb4347b9 binwin64pgom_dispatcher.dll+00083897 Mfh_MATLAB_fn_impl::dispatch_with_reuse+00000045
[ 32] 0x00007ffdc853a62e binwin64pgom_lxe.dll+00370222
[ 33] 0x00007ffdc85ba093 binwin64pgom_lxe.dll+00893075 MathWorks::lxe::initializeFcn+00521059
[ 34] 0x00007ffe8170f68c binwin64pgolibmx.dll+00652940 matrix::detail::noninlined::mx_array_api::mxFevalFunctionHandle+00000036
[ 35] 0x00007ffdcb225a75 binwin64pgom_interpreter.dll+00154229 mwboost::serialization::singleton<mwboost::serialization::extended_type_info_typeid<MathWorks::ExecutionEvents::UncaughtErrorEvent> >::singleton<mwboost::serialization::extended_type_info_typeid<MathWorks::ExecutionEvents::UncaughtErrorEvent> >+00027445
[ 36] 0x00007ffdc8258bea C:Program FilesPolyspaceR2021abinwin64builtin.dll+00101354 MathWorks::builtin::BuiltinFcn::invoke+00001130
[ 37] 0x00007ffdcb444b1c binwin64pgom_dispatcher.dll+00150300 Mfh_MATLAB_fn_impl::dispatch_mf_with_reuse+00000136
[ 38] 0x00007ffdcb434630 binwin64pgom_dispatcher.dll+00083504 Mfh_MATLAB_fn_impl::ensure_loading_of_load_module+00001856
[ 39] 0x00007ffdcb4347b9 binwin64pgom_dispatcher.dll+00083897 Mfh_MATLAB_fn_impl::dispatch_with_reuse+00000045
[ 40] 0x00007ffdc853a62e binwin64pgom_lxe.dll+00370222
[ 41] 0x00007ffdc8536436 binwin64pgom_lxe.dll+00353334
[ 42] 0x00007ffdc853638f binwin64pgom_lxe.dll+00353167
[ 43] 0x00007ffdcb20d550 binwin64pgom_interpreter.dll+00054608 inCallFcn+00000084
[ 44] 0x00007ffdc869f126 binwin64pgom_lxe.dll+01831206 mwboost::archive::detail::oserializer<mwboost::archive::binaryTerm_oarchive,MathWorks::lxe::ClosedAbstractionFunctionDescriptorOwningIrTree>::oserializer<mwboost::archive::binaryTerm_oarchive,MathWorks::lxe::ClosedAbstractionFunctionDescriptorOwningIrTree>+00022786
[ 45] 0x00007ffdcb2126e2 binwin64pgom_interpreter.dll+00075490 inCallFcnWithTrap+00000098
[ 46] 0x00007ffd677f4bc9 C:Program FilesPolyspaceR2021abinwin64dig.dll+03623881 dig::FunctionInfoToArray+00000649
[ 47] 0x00007ffd677c121a C:Program FilesPolyspaceR2021abinwin64dig.dll+03412506 dig::ActionCallback::operator()+00000826
[ 48] 0x00007ffd677c0efd C:Program FilesPolyspaceR2021abinwin64dig.dll+03411709 dig::ActionCallback::operator()+00000029
[ 49] 0x00007ffd676b27d4 C:Program FilesPolyspaceR2021abinwin64dig.dll+02303956 dig::ActionService::executeActionImpl+00001732
[ 50] 0x00007ffd676b185f C:Program FilesPolyspaceR2021abinwin64dig.dll+02299999 dig::ActionService::executeAction+00000287
[ 51] 0x00007ffd676b1e64 C:Program FilesPolyspaceR2021abinwin64dig.dll+02301540 dig::ActionService::executeAction+00000388
[ 52] 0x00007ffd67846164 C:Program FilesPolyspaceR2021abinwin64dig.dll+03957092 dig::View::handleEvent+00001252
[ 53] 0x00007ffd6783dc38 C:Program FilesPolyspaceR2021abinwin64dig.dll+03923000 dig::ToolStrip::handleEvent+00001704
[ 54] 0x00007ffd6771a182 C:Program FilesPolyspaceR2021abinwin64dig.dll+02728322 dig::UDDPropertyAdapter::setPropertyValue+00011682
[ 55] 0x00007ffd6765b3ab C:Program FilesPolyspaceR2021abinwin64dig.dll+01946539 dig::config::Widget::Impl::printHierarchy+00101019
[ 56] 0x00007ffd6764b9f3 C:Program FilesPolyspaceR2021abinwin64dig.dll+01882611 dig::config::Widget::Impl::printHierarchy+00037091
[ 57] 0x00007ffd6765f2f0 C:Program FilesPolyspaceR2021abinwin64dig.dll+01962736 dig::config::Widget::Impl::printHierarchy+00117216
[ 58] 0x00007ffdcb7a392a C:Program FilesPolyspaceR2021abinwin64iqm.dll+00801066 iqm::PackagedTaskPlugin::execute+00000074
[ 59] 0x00007ffdcb5ae1ed C:Program FilesPolyspaceR2021abinwin64mcr.dll+00516589 services::lmgr::exception::LicensingStartupException::~LicensingStartupException+00009613
[ 60] 0x00007ffdcb7765ec C:Program FilesPolyspaceR2021abinwin64iqm.dll+00615916 iqm::Iqm::setupIqmFcnPtrs+00106204
[ 61] 0x00007ffdcb7471f0 C:Program FilesPolyspaceR2021abinwin64iqm.dll+00422384 iqm::Iqm::create+00007024
[ 62] 0x00007ffdcafb8eaf C:Program FilesPolyspaceR2021abinwin64libmwbridge.dll+00102063 ioReadLine+00000463
[ 63] 0x00007ffdcafb8ca5 C:Program FilesPolyspaceR2021abinwin64libmwbridge.dll+00101541 ioReadLine+00000165
[ 64] 0x00007ffdcafca761 C:Program FilesPolyspaceR2021abinwin64libmwbridge.dll+00173921 mnGetCommandLineBuffer+00000289
[ 65] 0x00007ffdcafcabb7 C:Program FilesPolyspaceR2021abinwin64libmwbridge.dll+00175031 mnParser+00000487
[ 66] 0x00007ffdcb5b3d86 C:Program FilesPolyspaceR2021abinwin64mcr.dll+00540038 mcr_set_enableReadingFromStdin+00013894
[ 67] 0x00007ffdcb54f5d3 C:Program FilesPolyspaceR2021abinwin64mcr.dll+00128467 mcrFunctionSignature::set_signature+00107555
[ 68] 0x00007ffdcb56b550 C:Program FilesPolyspaceR2021abinwin64mcr.dll+00243024 mcrFunctionSignature::set_signature+00222112
[ 69] 0x00007ffdcb7a392a C:Program FilesPolyspaceR2021abinwin64iqm.dll+00801066 iqm::PackagedTaskPlugin::execute+00000074
[ 70] 0x00007ffdcb5ae1ed C:Program FilesPolyspaceR2021abinwin64mcr.dll+00516589 services::lmgr::exception::LicensingStartupException::~LicensingStartupException+00009613
[ 71] 0x00007ffdcb7765ec C:Program FilesPolyspaceR2021abinwin64iqm.dll+00615916 iqm::Iqm::setupIqmFcnPtrs+00106204
[ 72] 0x00007ffdcb7484bc C:Program FilesPolyspaceR2021abinwin64iqm.dll+00427196 iqm::Iqm::create+00011836
[ 73] 0x00007ffdcb747c32 C:Program FilesPolyspaceR2021abinwin64iqm.dll+00425010 iqm::Iqm::create+00009650
[ 74] 0x00007ffdcb5858fc C:Program FilesPolyspaceR2021abinwin64mcr.dll+00350460 mcrInstantiationError::operator=+00010428
[ 75] 0x00007ffdcb5864ac C:Program FilesPolyspaceR2021abinwin64mcr.dll+00353452 mcrInstantiationError::operator=+00013420
[ 76] 0x00007ffdcb583ac0 C:Program FilesPolyspaceR2021abinwin64mcr.dll+00342720 mcrInstantiationError::operator=+00002688
[ 77] 0x00007ffe84b79b9a C:Program FilesPolyspaceR2021abinwin64mwboost_thread-vc142-mt-x64-1_72.dll+00039834 mwboost::thread::swap+00000074
[ 78] 0x00007ffe8e6b6c0c C:WINDOWSSystem32ucrtbase.dll+00158732 recalloc+00000092
[ 79] 0x00007ffe8f2354e0 C:WINDOWSSystem32KERNEL32.DLL+00087264 BaseThreadInitThunk+00000016
[ 80] 0x00007ffe90be485b C:WINDOWSSYSTEM32ntdll.dll+00018523 RtlUserThreadStart+00000043

Program State:

Most Recent Simulink Activity:
playSimulationAction : OK in editor 1 at Thu Apr 7 06:39:12 2022
logEventsAction : OK in editor 1 at Thu Apr 7 06:39:06 2022whenever I run the simulation in any simulink file (.slx) matlab crashes:
the crash log:

MATLAB Log File: C:UsersengmhAppDataLocalTempmatlab_crash_dump.12920-1

————————————————
MATLAB Log File
————————————————

Fault Count: 1

Abnormal termination:
Access violation

Current Thread: ‘MCR 0 interpreter thread’ id 15084

R8 = 0000020e27645280 R9 = 0000000000000001
R10 = 0000020e27640000 R11 = 0000001d48cf8ba0
R12 = 0000000000000000 R13 = 0000000000000001
R14 = 0000020ee1632d70 R15 = 0000020ee3413e60

RIP = 00007ffd88c856c6 EFL = 00010206

CS = 0033 FS = 0053 GS = 002b

Program State:

Most Recent Simulink Activity:
playSimulationAction : OK in editor 1 at Thu Apr 7 06:39:12 2022
logEventsAction : OK in editor 1 at Thu Apr 7 06:39:06 2022 whenever I run the simulation in any simulink file (.slx) matlab crashes:
the crash log:

MATLAB Log File: C:UsersengmhAppDataLocalTempmatlab_crash_dump.12920-1

————————————————
MATLAB Log File
————————————————

Fault Count: 1

Abnormal termination:
Access violation

Current Thread: ‘MCR 0 interpreter thread’ id 15084

R8 = 0000020e27645280 R9 = 0000000000000001
R10 = 0000020e27640000 R11 = 0000001d48cf8ba0
R12 = 0000000000000000 R13 = 0000000000000001
R14 = 0000020ee1632d70 R15 = 0000020ee3413e60

RIP = 00007ffd88c856c6 EFL = 00010206

CS = 0033 FS = 0053 GS = 002b

Program State:

Most Recent Simulink Activity:
playSimulationAction : OK in editor 1 at Thu Apr 7 06:39:12 2022
logEventsAction : OK in editor 1 at Thu Apr 7 06:39:06 2022 crash, simulink crash, matlab crash, simulation crash MATLAB Answers — New Questions

Matlab News

Is there any way to transfer the digital credentials I earned to a different email account?

PuTI / 2025-03-14

Is there any way for the digital credentials I earned to be transferred to a different email account as the account in which I earned the digital credentials in, is my college email id and that account would be deactivated at the end of my college that is 2026.
So transfering the credits to my personal account will be of great help so as to be able to include them to my CV and/or resume.Is there any way for the digital credentials I earned to be transferred to a different email account as the account in which I earned the digital credentials in, is my college email id and that account would be deactivated at the end of my college that is 2026.
So transfering the credits to my personal account will be of great help so as to be able to include them to my CV and/or resume. Is there any way for the digital credentials I earned to be transferred to a different email account as the account in which I earned the digital credentials in, is my college email id and that account would be deactivated at the end of my college that is 2026.
So transfering the credits to my personal account will be of great help so as to be able to include them to my CV and/or resume. digital credentials, email account MATLAB Answers — New Questions

Matlab News

Refresh overlaid plots without “hold on/hold off” in each loop iteration

PuTI / 2025-03-14

I have a script with multiple figures that are updated in a for loop using their figure and axes handles. One of the figures is a pair of scatterplots overlaid on each other. I need both these concurrent scatterplots cleared at the beginning of each iteration, before updating with the new data for both of them. When using the "hold on" command to overlay the scatterplots on a single figure, I am unable to clear the second one for the next loop iteration using the "set" command. Here’s a snippet of my code:
for i = 1 to N

% Figure 1 (with overlaid scatterplots)
if ~(exist(fig1))
fig1 = figure;
f1 = subplot(2,1,1,’Parent’,fig1);
%% Overlay 2 scatterplots in this subplot %%
sc1 = scatter(x1,y1,’b’,’Parent’,f1);
hold on;
scatter(x2,y2,’r’,’Parent’,f1);
% Other subplots %
else
figure(fig1)
% Update new info for both scatterplots and overlay them in the first subplot
set(sc1,’XData’,x1,’YData’,y1,’CData’,repmat(sc1.CData(1,:)),’Parent’,f1);
hold on;
scatter(x2,y2,’r’,’Parent’,f1);
% Other subplots %
end

% Plot some other figure
if ~(exist(fig2))
fig2 = figure;
ax = axes(‘Parent’,fig1);
% Plot Figure 2
else
figure(fig2)
% Figure 2 plots and legends using ax
end

end
The problem is, the second scatterplot does not get cleared in the next loop iteration when set(sc1,…) is called. I tried the cla(f1,’reset’) command, but that deletes all the XData, YData variables, which I need to exist in order to update.
I think the "hold on" is creating the persistence issue, but adding "hold off" after the second scatter just clears the entire subfigure including axes.
Is there some other way to accomplish the goal of overlaid scatterplots refreshed in each loop?I have a script with multiple figures that are updated in a for loop using their figure and axes handles. One of the figures is a pair of scatterplots overlaid on each other. I need both these concurrent scatterplots cleared at the beginning of each iteration, before updating with the new data for both of them. When using the "hold on" command to overlay the scatterplots on a single figure, I am unable to clear the second one for the next loop iteration using the "set" command. Here’s a snippet of my code:
for i = 1 to N

% Plot some other figure
if ~(exist(fig2))
fig2 = figure;
ax = axes(‘Parent’,fig1);
% Plot Figure 2
else
figure(fig2)
% Figure 2 plots and legends using ax
end

end
The problem is, the second scatterplot does not get cleared in the next loop iteration when set(sc1,…) is called. I tried the cla(f1,’reset’) command, but that deletes all the XData, YData variables, which I need to exist in order to update.
I think the "hold on" is creating the persistence issue, but adding "hold off" after the second scatter just clears the entire subfigure including axes.
Is there some other way to accomplish the goal of overlaid scatterplots refreshed in each loop? I have a script with multiple figures that are updated in a for loop using their figure and axes handles. One of the figures is a pair of scatterplots overlaid on each other. I need both these concurrent scatterplots cleared at the beginning of each iteration, before updating with the new data for both of them. When using the "hold on" command to overlay the scatterplots on a single figure, I am unable to clear the second one for the next loop iteration using the "set" command. Here’s a snippet of my code:
for i = 1 to N

% Plot some other figure
if ~(exist(fig2))
fig2 = figure;
ax = axes(‘Parent’,fig1);
% Plot Figure 2
else
figure(fig2)
% Figure 2 plots and legends using ax
end

Matlab News

Stability Margins for MIMO Feedback Loop

PuTI / 2025-03-14

Hello,
I have this NDI-Controller for the lateral motion of an aircraft modelled in Simuink and want to determine its stabiity margins. I am strugging in how to linearize the open feedback loop. I placed an ‘looptransfer’ analysis point after my Control Allocation, hence the control input. When I now linearize the open-loop with the Model Linearizer, and determine the margins in MATLAB with ‘allmargin(-linsys)’, it says, that my open-loop is not stable.

For me it seems, like I am using the Matlab Linearizer not correctly, as my outputs of the feedback loop seem stable. The same to all the poles.

Does anyone have an idea, how I should linearize the feedback loop to receive the correct gain & phase margins? Would be so helpful.
Thanks a lot.

Cheers,
FloHello,
I have this NDI-Controller for the lateral motion of an aircraft modelled in Simuink and want to determine its stabiity margins. I am strugging in how to linearize the open feedback loop. I placed an ‘looptransfer’ analysis point after my Control Allocation, hence the control input. When I now linearize the open-loop with the Model Linearizer, and determine the margins in MATLAB with ‘allmargin(-linsys)’, it says, that my open-loop is not stable.

For me it seems, like I am using the Matlab Linearizer not correctly, as my outputs of the feedback loop seem stable. The same to all the poles.

Does anyone have an idea, how I should linearize the feedback loop to receive the correct gain & phase margins? Would be so helpful.
Thanks a lot.

Cheers,
Flo Hello,
I have this NDI-Controller for the lateral motion of an aircraft modelled in Simuink and want to determine its stabiity margins. I am strugging in how to linearize the open feedback loop. I placed an ‘looptransfer’ analysis point after my Control Allocation, hence the control input. When I now linearize the open-loop with the Model Linearizer, and determine the margins in MATLAB with ‘allmargin(-linsys)’, it says, that my open-loop is not stable.

For me it seems, like I am using the Matlab Linearizer not correctly, as my outputs of the feedback loop seem stable. The same to all the poles.

Does anyone have an idea, how I should linearize the feedback loop to receive the correct gain & phase margins? Would be so helpful.
Thanks a lot.

Cheers,
Flo model linearizer, simulink, matlab, margins, allmargins, stabiity, gain margin, feedback, open-loop, open loop, plant, looptransfer, control design, poles MATLAB Answers — New Questions

News

SharePoint Online PowerShell Module Gets Modern Authentication

Tony Redmond / 2025-03-14

Old-Fashioned Identity Client Jettisoned for OAuth

Message center notification MC1028318 (March 11, 2025) says that the SharePoint Online PowerShell module will replace the IDCRL authentication protocol with OAuth (modern authentication). Microsoft says that the replacement is “part of our ongoing efforts to enhance security and adopt modern authentication practices.”

Some might ask why it’s taken so long for Microsoft to make the decision to switch the module to OAuth. Microsoft has not given the SharePoint Online PowerShell module much tender loving care over the last few years. For instance, the module hasn’t been upgraded to PowerShell 7 and remains an outlier in this respect within the set of PowerShell modules used within Microsoft 365.

It’s not as if an adequate Graph-based replacement exists. The SharePoint Settings Graph API appeared in mid-2022 and hasn’t made much progress since. It’s just one of the reasons why the SharePoint PnP module is so popular.

The Identity Client Run Time Library

IDCRL is the Identity Client Run Time Library. It’s a very old authentication protocol that was used by products like Lync 2010 Server to authenticate with Exchange Online and Lync Online. IDCRL was also used by the Office desktop apps. Microsoft replaced IDCRL in the Microsoft 365 Apps for enterprise in September 2020 (MC222132).

More pertinently, SharePoint Online used IDCRL for authentication until recently, including with CSOM-based applications.

Upgrade in Modules Released after March 28, 2025

Microsoft issues new versions of the Microsoft.Online.SharePoint.PowerShell module regularly, mostly to add cmdlets or parameters needed to manage features like intelligent versioning. In this case, the change to OAuth is effective for modules released after March 28, 2025 (versions higher than 16.0.25814.12000).

You can download the latest version of the SharePoint Online management module from the PowerShell gallery (Figure 1). Once installed, the Connect-SPOService cmdlet automatically uses modern authentication (also called “modern TLS protocols”) instead of IDCRL. Although the implementation is designed not to affect how scripts work, you might see warning messages because Microsoft will deprecate the ModernAuth parameter in the future (the parameter is now obsolete).

SharePoint Online management module in the PowerShell gallery..Microsoft.Online.SharePoint.PowerShell — Figure 1: SharePoint Online PowerShell management module in the PowerShell gallery

Although I accept Microsoft’s statement that the upgrade to OAuth-based authentication should not affect scripts, it’s always wise to test and verify in case the specific use of the module in a tenant is an edge case that Microsoft doesn’t test. Given some of the recent problems with other PowerShell modules, testing an updated module before putting it into production is always wise.

One Small Step Forward

Given Microsoft’s focus on removing outdated authentication protocols from across Microsoft 365 workloads, it’s surprising that the SharePoint Online management PowerShell module is only now being updated. It’s well behind the modules to manage other major workloads like Exchange and Teams. But then again, as I keep on saying, the signs over the last few years is that Microsoft really doesn’t devote too much attention to the SharePoint Online management module, and that’s a real pity.

So much change, all the time. It’s a challenge to stay abreast of all the updates Microsoft makes across the Microsoft 365 ecosystem. Subscribe to the Office 365 for IT Pros eBook to receive monthly insights into what happens, why it happens, and what new features and capabilities mean for your tenant.

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MATLAB crashes whenever running simulation in a .slx file

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Refresh overlaid plots without “hold on/hold off” in each loop iteration

Stability Margins for MIMO Feedback Loop

SharePoint Online PowerShell Module Gets Modern Authentication

Old-Fashioned Identity Client Jettisoned for OAuth

The Identity Client Run Time Library

Upgrade in Modules Released after March 28, 2025

One Small Step Forward

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Report Message and Report Phishing Deemed Unsafe by Microsoft

Unsafe Add-ins

Checking the Report Add-ins

Removing an Add-in

Old-Fashioned Identity Client Jettisoned for OAuth

The Identity Client Run Time Library

Upgrade in Modules Released after March 28, 2025

One Small Step Forward

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