Month: August 2024
If One Booking, Block Day
I have a scenario where if an hour block is booked on a day for a site visit, I want to block off the whole day so no one else can book that day. Any ideas on if or how we can do this in Bookings?
I have a scenario where if an hour block is booked on a day for a site visit, I want to block off the whole day so no one else can book that day. Any ideas on if or how we can do this in Bookings? Read More
What is the most efficient way to implement conditional formatting?
Hi,
I currently manage conditional formatting of cells that require a reasonably complex formula by placing a formula in a cell, then have the conditional formatting formula point to that cell.
My question is:
Am I sacrificing efficiency and speed by defining additional formulas in the sheet rather than configuring the formula in the conditional formatting dialogue?
For example, I have this formula in cell AG190.
=AND(OR(AG$172:AG$189),OR(Var1<10,Var1>18))
or more precisely, this formula is filled across cells AG190:AO190
Elsewhere, I have a range of cells with conditional formatting that simply refer to these cells i.e.
=AG$190
so using this example, my question is
would my sheet be more (or less) efficient/faster/slower if I placed the formula in the conditional formatting rule? i.e. change the =AG$190 to =AND(OR(AG$172:AG$189),OR(Var1<10,Var1>18)) and just forget about using the interim calculation cells?
TIA
RedNectar
Hi,I currently manage conditional formatting of cells that require a reasonably complex formula by placing a formula in a cell, then have the conditional formatting formula point to that cell.My question is:Am I sacrificing efficiency and speed by defining additional formulas in the sheet rather than configuring the formula in the conditional formatting dialogue?For example, I have this formula in cell AG190.=AND(OR(AG$172:AG$189),OR(Var1<10,Var1>18))or more precisely, this formula is filled across cells AG190:AO190Elsewhere, I have a range of cells with conditional formatting that simply refer to these cells i.e.=AG$190so using this example, my question is would my sheet be more (or less) efficient/faster/slower if I placed the formula in the conditional formatting rule? i.e. change the =AG$190 to =AND(OR(AG$172:AG$189),OR(Var1<10,Var1>18)) and just forget about using the interim calculation cells?TIARedNectar Read More
Staff Contingent on Days Booked
I have a scenario where a service is offered three days of the week, but bookings need to be contingent on three staff members’ calendars the first two days and only two of those staff members the third day. Is there a way to tell it to not look at that third member calendar on the third day for availability?
I have a scenario where a service is offered three days of the week, but bookings need to be contingent on three staff members’ calendars the first two days and only two of those staff members the third day. Is there a way to tell it to not look at that third member calendar on the third day for availability? Read More
TrailShark: Understanding AWS API and Service Interactions
In this blog, we introduce TrailShark, a plugin that connects Wireshark with AWS CloudTrail logs. This open-source tool was developed as part of the “Bucket Monopoly” research, during which we identified six vulnerabilities in AWS by tracking service interactions and internal API calls. These vulnerabilities range from remote code execution (RCE) and full-service user takeover (which could provide powerful administrative access) to manipulation of AI modules, exposure of sensitive data, data exfiltration, and denial of service.
In this blog, we introduce TrailShark, a plugin that connects Wireshark with AWS CloudTrail logs. This open-source tool was developed as part of the “Bucket Monopoly” research, during which we identified six vulnerabilities in AWS by tracking service interactions and internal API calls. These vulnerabilities range from remote code execution (RCE) and full-service user takeover (which could provide powerful administrative access) to manipulation of AI modules, exposure of sensitive data, data exfiltration, and denial of service.Read More
Bucket Monopoly: Breaching AWS Accounts Through Shadow Resources
During February 2024, we discovered critical vulnerabilities in six AWS services. The impact of these vulnerabilities range between remote code execution (RCE), full-service user takeover (which might provide powerful administrative access), manipulation of AI modules, exposing sensitive data, data exfiltration and denial of service.
During February 2024, we discovered critical vulnerabilities in six AWS services. The impact of these vulnerabilities range between remote code execution (RCE), full-service user takeover (which might provide powerful administrative access), manipulation of AI modules, exposing sensitive data, data exfiltration and denial of service. Read More
Sending Data sensor from MATLAB Simulink to firebase
Hi,
I have a MATLAB Simulink model of an EV station electric with sensors such as a current sensor. I want to send the real-time sensor data to Firebase. Is there a methode to do connect MATLAB with Firebase databse?
Thanks,Hi,
I have a MATLAB Simulink model of an EV station electric with sensors such as a current sensor. I want to send the real-time sensor data to Firebase. Is there a methode to do connect MATLAB with Firebase databse?
Thanks, Hi,
I have a MATLAB Simulink model of an EV station electric with sensors such as a current sensor. I want to send the real-time sensor data to Firebase. Is there a methode to do connect MATLAB with Firebase databse?
Thanks, matlab, firebase MATLAB Answers — New Questions
what function for computing all subsets given an array of consecutive number?
Hi I’m a little lost looking up the function call for the task: computing all subset of this array, which has 12 consecutive numbers
So, like given we have
a = [1:12];
% need to get all 2^12 subsets [1, 2], [1, 2, 3]….
I’m trying but I don’t think combntns() could workHi I’m a little lost looking up the function call for the task: computing all subset of this array, which has 12 consecutive numbers
So, like given we have
a = [1:12];
% need to get all 2^12 subsets [1, 2], [1, 2, 3]….
I’m trying but I don’t think combntns() could work Hi I’m a little lost looking up the function call for the task: computing all subset of this array, which has 12 consecutive numbers
So, like given we have
a = [1:12];
% need to get all 2^12 subsets [1, 2], [1, 2, 3]….
I’m trying but I don’t think combntns() could work subsets MATLAB Answers — New Questions
Lorenz Attractor Animation with Frame-by-Frame Plotting
I was trying to create an animation of Lorenz Attractor. I used the following code but it did not give me the result I want like https://en.wikipedia.org/wiki/Lorenz_system.
% Parameters
sigma = 10;
rho = 28;
beta = 8/3;
% Time span
tspan = [0 50]; % Adjusted for smooth animation
% Initial conditions
y0 = [1; 1; 1];
% Lorenz system of equations
lorenz = @(t, y) [sigma * (y(2) – y(1));
y(1) * (rho – y(3)) – y(2);
y(1) * y(2) – beta * y(3)];
% Solve the system using ode45
[t, y] = ode45(lorenz, tspan, y0);
% Set up the figure for animation
figure;
h = plot3(y(1,1), y(1,2), y(1,3));
xlabel(‘X’);
ylabel(‘Y’);
zlabel(‘Z’);
title(‘Lorenz Attractor Animation’);
grid on;
axis([-20 20 -30 30 0 50]);
view(3);
hold on;
% Animate the Lorenz attractor
for i = 2:length(t)
% Update the plot data
h.XData = y(1:i, 1);
h.YData = y(1:i, 2);
h.ZData = y(1:i, 3);
% Refresh the figure
drawnow;
% Optional: Pause to slow down the animation if too fast
pause(0.01); % Adjust the pause time as needed
endI was trying to create an animation of Lorenz Attractor. I used the following code but it did not give me the result I want like https://en.wikipedia.org/wiki/Lorenz_system.
% Parameters
sigma = 10;
rho = 28;
beta = 8/3;
% Time span
tspan = [0 50]; % Adjusted for smooth animation
% Initial conditions
y0 = [1; 1; 1];
% Lorenz system of equations
lorenz = @(t, y) [sigma * (y(2) – y(1));
y(1) * (rho – y(3)) – y(2);
y(1) * y(2) – beta * y(3)];
% Solve the system using ode45
[t, y] = ode45(lorenz, tspan, y0);
% Set up the figure for animation
figure;
h = plot3(y(1,1), y(1,2), y(1,3));
xlabel(‘X’);
ylabel(‘Y’);
zlabel(‘Z’);
title(‘Lorenz Attractor Animation’);
grid on;
axis([-20 20 -30 30 0 50]);
view(3);
hold on;
% Animate the Lorenz attractor
for i = 2:length(t)
% Update the plot data
h.XData = y(1:i, 1);
h.YData = y(1:i, 2);
h.ZData = y(1:i, 3);
% Refresh the figure
drawnow;
% Optional: Pause to slow down the animation if too fast
pause(0.01); % Adjust the pause time as needed
end I was trying to create an animation of Lorenz Attractor. I used the following code but it did not give me the result I want like https://en.wikipedia.org/wiki/Lorenz_system.
% Parameters
sigma = 10;
rho = 28;
beta = 8/3;
% Time span
tspan = [0 50]; % Adjusted for smooth animation
% Initial conditions
y0 = [1; 1; 1];
% Lorenz system of equations
lorenz = @(t, y) [sigma * (y(2) – y(1));
y(1) * (rho – y(3)) – y(2);
y(1) * y(2) – beta * y(3)];
% Solve the system using ode45
[t, y] = ode45(lorenz, tspan, y0);
% Set up the figure for animation
figure;
h = plot3(y(1,1), y(1,2), y(1,3));
xlabel(‘X’);
ylabel(‘Y’);
zlabel(‘Z’);
title(‘Lorenz Attractor Animation’);
grid on;
axis([-20 20 -30 30 0 50]);
view(3);
hold on;
% Animate the Lorenz attractor
for i = 2:length(t)
% Update the plot data
h.XData = y(1:i, 1);
h.YData = y(1:i, 2);
h.ZData = y(1:i, 3);
% Refresh the figure
drawnow;
% Optional: Pause to slow down the animation if too fast
pause(0.01); % Adjust the pause time as needed
end ode45, differential equations, 3d plots MATLAB Answers — New Questions
why i can’t search in notes in contacts in new outlook like old outlook
what’s the point of a new outlook if it has less future than the old outlook
I can’t search in notes in contacts in new outlook like old outlook,
what’s the point of a new outlook if it has less future than the old outlook I can’t search in notes in contacts in new outlook like old outlook, Read More
Using Matlab Runge Kutta Routine
I’m having trouble with the following code. I’m trying to test it to get it to produce the final value as it proceeds through the count and increments the count, but it isn’t working. It won’t go past the first increment. I’m new to Matlab (once again). Can anyone assist me?
handle=[];
%Initial Conditions
pn0 = 0.0; %Initial north position
pe0 = 0.0; %initial east position
pd0 = -100.0; %initial east position
u0 =25.0; %initial velocity along body x-axis
v0 = 0.0; %initial velocity along body y-axis
w0 = 0.0; %initial velocity along body z-axis
phi0 = 0.0; %initial roll angle
theta0 = 0.0; %initial pitch angle
psi0 = 0.0; %initial yaw rate
l0 = 0; %initial moment about ib axis
m0 = 0; %initial moment about jb axis
n0 = 0; %initial moment about kb axis
p0 = 0; %initial roll rate along ib in Fb
q0 = 0; %initial pitch rate along jb in Fb
r0 = 0; %initial yaw rate along kb in Fb
Va0 = (u0^2 + v0^2 + w0^2)^0.5; %initial velocity
%Initial forces producing acceleration – fx, fy, fz
fx = 0; %Force in the ib direction.
fy = 0; %Force in the jb direciton.
fz = 0; %Force in the kb direction.
%Plane is initially aligned so that ib,jb, and kb
%correspond to x, y, z.
%Physical Parameters
mass = 11; % kg
Jx = 0.8244; %kg m^2
Jy = 1.135;
Jz = 1.759;
Jxz = 0.1204;
S_wing = 0.55;
b = 2.8956;
c = 0.18994;
Sprop = 0.2027;
rho = 1.2682;
e = 0.9;
AR = (b^2)/S_wing;
gravity = 9.81;
%Gamma Values
G = Jx * Jz – (Jxz^2);
G1 = (Jxz * (Jx – Jy + Jz))/ G ;
G2 = (Jz * (Jz – Jy) + (Jxz^2))/ G;
G3 = Jz / G;
G4 = Jxz / G;
G5 = (Jz – Jx) / Jy;
G6 = Jxz / Jy;
G7 = ((Jx – Jy) * Jx + (Jxz ^ 2)) / G;
G8 = Jx / G;
%Establish the parameters to pass to the subroutines
p = p0;
q = q0;
r = r0;
l = l0;
m = m0;
n = n0;
u = u0;
v = v0;
w = w0;
phi = phi0;
theta = theta0;
psi = psi0;
dt = 0.1;
fxone = fx;
fyone = fy;
fzone = fz;
fxtwo = 0;
fytwo = 0;
fztwo = 0;
n=0;
numsteps=100;
total_time = 100; % total simulation time in seconds
time_step = 0.1; % time step in seconds
num_steps = total_time / time_step; % number of steps
for count = 1:numsteps
clc;
clear all;
%Runge Kutta 4 attempt;
%fx = 5*t/mass
r=0
v=0;
q=0;
w=0;
mass = 10;
tstart = (count-1)*time_step;
tstop = tstart + 0.01;
tspan = [tstart,0.01,tstop];
y0=0.0;
[t,y]=ode45(@(t,y) (r*v-q*w)+5*t/mass, tspan, y0);
plot(t,y,’-o’)
formatSpec = ‘The next element of the Y array is equal to %6.4f at %6.4.’;
fprintf (formatSpec,y(end,:),t(end,:));
pause;
endI’m having trouble with the following code. I’m trying to test it to get it to produce the final value as it proceeds through the count and increments the count, but it isn’t working. It won’t go past the first increment. I’m new to Matlab (once again). Can anyone assist me?
handle=[];
%Initial Conditions
pn0 = 0.0; %Initial north position
pe0 = 0.0; %initial east position
pd0 = -100.0; %initial east position
u0 =25.0; %initial velocity along body x-axis
v0 = 0.0; %initial velocity along body y-axis
w0 = 0.0; %initial velocity along body z-axis
phi0 = 0.0; %initial roll angle
theta0 = 0.0; %initial pitch angle
psi0 = 0.0; %initial yaw rate
l0 = 0; %initial moment about ib axis
m0 = 0; %initial moment about jb axis
n0 = 0; %initial moment about kb axis
p0 = 0; %initial roll rate along ib in Fb
q0 = 0; %initial pitch rate along jb in Fb
r0 = 0; %initial yaw rate along kb in Fb
Va0 = (u0^2 + v0^2 + w0^2)^0.5; %initial velocity
%Initial forces producing acceleration – fx, fy, fz
fx = 0; %Force in the ib direction.
fy = 0; %Force in the jb direciton.
fz = 0; %Force in the kb direction.
%Plane is initially aligned so that ib,jb, and kb
%correspond to x, y, z.
%Physical Parameters
mass = 11; % kg
Jx = 0.8244; %kg m^2
Jy = 1.135;
Jz = 1.759;
Jxz = 0.1204;
S_wing = 0.55;
b = 2.8956;
c = 0.18994;
Sprop = 0.2027;
rho = 1.2682;
e = 0.9;
AR = (b^2)/S_wing;
gravity = 9.81;
%Gamma Values
G = Jx * Jz – (Jxz^2);
G1 = (Jxz * (Jx – Jy + Jz))/ G ;
G2 = (Jz * (Jz – Jy) + (Jxz^2))/ G;
G3 = Jz / G;
G4 = Jxz / G;
G5 = (Jz – Jx) / Jy;
G6 = Jxz / Jy;
G7 = ((Jx – Jy) * Jx + (Jxz ^ 2)) / G;
G8 = Jx / G;
%Establish the parameters to pass to the subroutines
p = p0;
q = q0;
r = r0;
l = l0;
m = m0;
n = n0;
u = u0;
v = v0;
w = w0;
phi = phi0;
theta = theta0;
psi = psi0;
dt = 0.1;
fxone = fx;
fyone = fy;
fzone = fz;
fxtwo = 0;
fytwo = 0;
fztwo = 0;
n=0;
numsteps=100;
total_time = 100; % total simulation time in seconds
time_step = 0.1; % time step in seconds
num_steps = total_time / time_step; % number of steps
for count = 1:numsteps
clc;
clear all;
%Runge Kutta 4 attempt;
%fx = 5*t/mass
r=0
v=0;
q=0;
w=0;
mass = 10;
tstart = (count-1)*time_step;
tstop = tstart + 0.01;
tspan = [tstart,0.01,tstop];
y0=0.0;
[t,y]=ode45(@(t,y) (r*v-q*w)+5*t/mass, tspan, y0);
plot(t,y,’-o’)
formatSpec = ‘The next element of the Y array is equal to %6.4f at %6.4.’;
fprintf (formatSpec,y(end,:),t(end,:));
pause;
end I’m having trouble with the following code. I’m trying to test it to get it to produce the final value as it proceeds through the count and increments the count, but it isn’t working. It won’t go past the first increment. I’m new to Matlab (once again). Can anyone assist me?
handle=[];
%Initial Conditions
pn0 = 0.0; %Initial north position
pe0 = 0.0; %initial east position
pd0 = -100.0; %initial east position
u0 =25.0; %initial velocity along body x-axis
v0 = 0.0; %initial velocity along body y-axis
w0 = 0.0; %initial velocity along body z-axis
phi0 = 0.0; %initial roll angle
theta0 = 0.0; %initial pitch angle
psi0 = 0.0; %initial yaw rate
l0 = 0; %initial moment about ib axis
m0 = 0; %initial moment about jb axis
n0 = 0; %initial moment about kb axis
p0 = 0; %initial roll rate along ib in Fb
q0 = 0; %initial pitch rate along jb in Fb
r0 = 0; %initial yaw rate along kb in Fb
Va0 = (u0^2 + v0^2 + w0^2)^0.5; %initial velocity
%Initial forces producing acceleration – fx, fy, fz
fx = 0; %Force in the ib direction.
fy = 0; %Force in the jb direciton.
fz = 0; %Force in the kb direction.
%Plane is initially aligned so that ib,jb, and kb
%correspond to x, y, z.
%Physical Parameters
mass = 11; % kg
Jx = 0.8244; %kg m^2
Jy = 1.135;
Jz = 1.759;
Jxz = 0.1204;
S_wing = 0.55;
b = 2.8956;
c = 0.18994;
Sprop = 0.2027;
rho = 1.2682;
e = 0.9;
AR = (b^2)/S_wing;
gravity = 9.81;
%Gamma Values
G = Jx * Jz – (Jxz^2);
G1 = (Jxz * (Jx – Jy + Jz))/ G ;
G2 = (Jz * (Jz – Jy) + (Jxz^2))/ G;
G3 = Jz / G;
G4 = Jxz / G;
G5 = (Jz – Jx) / Jy;
G6 = Jxz / Jy;
G7 = ((Jx – Jy) * Jx + (Jxz ^ 2)) / G;
G8 = Jx / G;
%Establish the parameters to pass to the subroutines
p = p0;
q = q0;
r = r0;
l = l0;
m = m0;
n = n0;
u = u0;
v = v0;
w = w0;
phi = phi0;
theta = theta0;
psi = psi0;
dt = 0.1;
fxone = fx;
fyone = fy;
fzone = fz;
fxtwo = 0;
fytwo = 0;
fztwo = 0;
n=0;
numsteps=100;
total_time = 100; % total simulation time in seconds
time_step = 0.1; % time step in seconds
num_steps = total_time / time_step; % number of steps
for count = 1:numsteps
clc;
clear all;
%Runge Kutta 4 attempt;
%fx = 5*t/mass
r=0
v=0;
q=0;
w=0;
mass = 10;
tstart = (count-1)*time_step;
tstop = tstart + 0.01;
tspan = [tstart,0.01,tstop];
y0=0.0;
[t,y]=ode45(@(t,y) (r*v-q*w)+5*t/mass, tspan, y0);
plot(t,y,’-o’)
formatSpec = ‘The next element of the Y array is equal to %6.4f at %6.4.’;
fprintf (formatSpec,y(end,:),t(end,:));
pause;
end runge kutta MATLAB Answers — New Questions
Generated code (Embedded Coder) for Mod block generates expensive function call to rt_modf
Using the built in math function block for the mod operation generates an expensive function call in the generated code.
I am using floating points and the desire is just to produce fmodf() as the result of code generation.
Anyone have any ideas? there do not seem to be any settings for this block related to CodeGenUsing the built in math function block for the mod operation generates an expensive function call in the generated code.
I am using floating points and the desire is just to produce fmodf() as the result of code generation.
Anyone have any ideas? there do not seem to be any settings for this block related to CodeGen Using the built in math function block for the mod operation generates an expensive function call in the generated code.
I am using floating points and the desire is just to produce fmodf() as the result of code generation.
Anyone have any ideas? there do not seem to be any settings for this block related to CodeGen modulus, modulo, fmodf, rt_modf, mod MATLAB Answers — New Questions
COMBINING 2 SHEETS
I have to sheets one has real estate property owner info & the other has real estate property details
The one thig they share is the property address & a few columns
How can I combine them into one sheet
I have to sheets one has real estate property owner info & the other has real estate property details The one thig they share is the property address & a few columns How can I combine them into one sheet Read More
Formula to locate the date from a list of dates that is less than but closest to a specific date
I have a column of specific dates (sprint end dates). When determining delivery milestone dates for a project, I need to know which sprint a milestone date falls in. I can look it up manually but where is the fun in that?
For example: if a project estimate determines a design must be completed by 11/10, I want to know the sprint end date of the sprint it would fall into?
Data Table:SprintStart DateEnd DateOCT24-2110/9/202410/22/2024OCT24-2210/23/202411/5/2024NOV24-2311/6/202411/19/2024NOV24-2411/20/202412/3/2024DEC24-2512/4/202412/17/2024DEC24-2612/18/202412/31/2024 Milestone date:11/10/2024 Sprint End Date:11/19/2024
I have a column of specific dates (sprint end dates). When determining delivery milestone dates for a project, I need to know which sprint a milestone date falls in. I can look it up manually but where is the fun in that? For example: if a project estimate determines a design must be completed by 11/10, I want to know the sprint end date of the sprint it would fall into?Data Table:SprintStart DateEnd DateOCT24-2110/9/202410/22/2024OCT24-2210/23/202411/5/2024NOV24-2311/6/202411/19/2024NOV24-2411/20/202412/3/2024DEC24-2512/4/202412/17/2024DEC24-2612/18/202412/31/2024 Milestone date:11/10/2024 Sprint End Date:11/19/2024 Read More
Combine 2 unique row entries from a table into 1 consolidated row entry
So I’m hoping there’s a solution to this, but I’m not expert level at excel and can’t figure it out.
To give some background, I’m inputting sales data each month into a table that has thousands of different accounts. In the sales data that I’m pulling, some of the accounts have multiple locations (like a store and a warehouse) and the sales data will be separated into two separate unique rows with unique names, addresses, and account IDs.
For this example, let’s say I have two different rows that are reflected as “Account A Store” and “Account A Warehouse” (again both with unique addresses and unique account IDs with their own respective sales data).
Is there anyway to combine these two separate rows into one consolidated “Account A” row. Whether that be moving it into another Table or Pivot Table? Or can this be done with any formatting or VBA?
This example needs to be repeated, as there are numerous accounts like this, and I’m entering new sales data every month.
Thanks and I appreciate any help!
So I’m hoping there’s a solution to this, but I’m not expert level at excel and can’t figure it out. To give some background, I’m inputting sales data each month into a table that has thousands of different accounts. In the sales data that I’m pulling, some of the accounts have multiple locations (like a store and a warehouse) and the sales data will be separated into two separate unique rows with unique names, addresses, and account IDs. For this example, let’s say I have two different rows that are reflected as “Account A Store” and “Account A Warehouse” (again both with unique addresses and unique account IDs with their own respective sales data). Is there anyway to combine these two separate rows into one consolidated “Account A” row. Whether that be moving it into another Table or Pivot Table? Or can this be done with any formatting or VBA? This example needs to be repeated, as there are numerous accounts like this, and I’m entering new sales data every month. Thanks and I appreciate any help! Read More
PDF to Excel – Data Mining
Many years ago I used Monarch to perform data mining extracts from a payers 835 remittance advice into excel. We captured all elements spread throughout the PDF into single line item details. Sadly, the times have changed and what used to cost $150 for the Monarch CD to use is now totally different, costing over $5k for a yearly prescription cost.
I have attached a Mock PDF and a mock of what I want to see in excel. Any thoughts of a program that will not break my tiny little bank would be great. Or, using the data extract option in excel to work properly.
Many years ago I used Monarch to perform data mining extracts from a payers 835 remittance advice into excel. We captured all elements spread throughout the PDF into single line item details. Sadly, the times have changed and what used to cost $150 for the Monarch CD to use is now totally different, costing over $5k for a yearly prescription cost. I have attached a Mock PDF and a mock of what I want to see in excel. Any thoughts of a program that will not break my tiny little bank would be great. Or, using the data extract option in excel to work properly. Read More
Downloading Forms file
Can I download survey I created online using Microsoft forms?
I created survey online but I am unable to download it.
Silly question: Do Forms exist only online?
Can I download survey I created online using Microsoft forms?I created survey online but I am unable to download it.Silly question: Do Forms exist only online?forms Read More
[Azure Service Bus] JMS messages getting dead-lettered
The article discusses a problem where numerous messages end up in the dead letter queue (DLQ) when the JMS service bus consumer connects to the Azure Service Bus using Qpid jars. The reason for the messages being dead-lettered is that they have reached the maximum delivery count.
The fundamental issue stems from Apache Qpid’s message handling. Qpid utilizes a local buffer to prefetch messages from the Azure Service Bus, storing them prior to delivery to the consumer. The complication occurs when Qpid prefetches an excessive number of messages that the consumer is unable to process within the lock duration. Consequently, the consumer is unable to acknowledge or finalize the processing of these messages before the lock expires, leading to an accumulation of messages in the Dead Letter Queue (DLQ).
To address this problem, it is crucial to either turn off Qpid’s local buffer or modify the prefetch count. Disabling prefetching is achievable by setting jms.prefetchPolicy.all=0 in the JMS client. This configuration allows the JMS client to directly consume messages from the Azure Service Bus, circumventing Qpid’s local buffer. Consequently, the consumer can process messages at a suitable pace, guaranteeing smooth processing and issue-free completion.
Why is Prefetch not the default option in Microsoft .NET/Java/Python libs?
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Limit the number of Radar detections per object to one in Automated driving toolbox
Hi,
I am using the Automated Driving Toolbox to collect radar data and test my algorithm. My algorithm is designed to use only one detection per object. Is there a way to configure this in the Automated Driving Toolbox? I understand that I can limit the total number of detections by radar, but I specifically need one detection per object.Hi,
I am using the Automated Driving Toolbox to collect radar data and test my algorithm. My algorithm is designed to use only one detection per object. Is there a way to configure this in the Automated Driving Toolbox? I understand that I can limit the total number of detections by radar, but I specifically need one detection per object. Hi,
I am using the Automated Driving Toolbox to collect radar data and test my algorithm. My algorithm is designed to use only one detection per object. Is there a way to configure this in the Automated Driving Toolbox? I understand that I can limit the total number of detections by radar, but I specifically need one detection per object. automated driving toolbox, radar MATLAB Answers — New Questions
How do I save the answers from a for loop that solved an equation symbolically?
I am trying to save the answers from a for loop in which I solved an equation symbolically.
T_c = 33.145; %crit temp of hydrogen (K)
P_c = 1.3e6; %crit pressure (Pa)
R = 8.314472; %universal gas constant (J/(mol*K)
a = (0.427487*(R^2)*(T_c^2.5))/P_c;
b = (0.08662*R*T_c)/P_c;
x = 0.000051473700293409386773440257598528; %V_m
for P = 2e6:2e6:70e6
syms T_g
eqn = ((8.314472*T_g)/(x-b)) – (a/(sqrt(T_g)*x*(x+b))) == P;
solx = solve(eqn,T_g,"Real",true);
solx = vpa(solx);
end
With this code, I only have the final answer.
I tried using the code below to save the answers from the for loop, but I could not save them and got the answer in the screenshot.
k=0;
for P = 2e6:2e6:70e6
k=k+1;
syms T_g
eqn = ((8.314472*T_g)/(x-b)) – (a/(sqrt(T_g)*x*(x+b))) == P;
solx = solve(eqn,T_g,"Real",true);
solx = vpa(solx);
T_g(:,k) = solx;
end
Can somebody show how to save the answers from a for loop?I am trying to save the answers from a for loop in which I solved an equation symbolically.
T_c = 33.145; %crit temp of hydrogen (K)
P_c = 1.3e6; %crit pressure (Pa)
R = 8.314472; %universal gas constant (J/(mol*K)
a = (0.427487*(R^2)*(T_c^2.5))/P_c;
b = (0.08662*R*T_c)/P_c;
x = 0.000051473700293409386773440257598528; %V_m
for P = 2e6:2e6:70e6
syms T_g
eqn = ((8.314472*T_g)/(x-b)) – (a/(sqrt(T_g)*x*(x+b))) == P;
solx = solve(eqn,T_g,"Real",true);
solx = vpa(solx);
end
With this code, I only have the final answer.
I tried using the code below to save the answers from the for loop, but I could not save them and got the answer in the screenshot.
k=0;
for P = 2e6:2e6:70e6
k=k+1;
syms T_g
eqn = ((8.314472*T_g)/(x-b)) – (a/(sqrt(T_g)*x*(x+b))) == P;
solx = solve(eqn,T_g,"Real",true);
solx = vpa(solx);
T_g(:,k) = solx;
end
Can somebody show how to save the answers from a for loop? I am trying to save the answers from a for loop in which I solved an equation symbolically.
T_c = 33.145; %crit temp of hydrogen (K)
P_c = 1.3e6; %crit pressure (Pa)
R = 8.314472; %universal gas constant (J/(mol*K)
a = (0.427487*(R^2)*(T_c^2.5))/P_c;
b = (0.08662*R*T_c)/P_c;
x = 0.000051473700293409386773440257598528; %V_m
for P = 2e6:2e6:70e6
syms T_g
eqn = ((8.314472*T_g)/(x-b)) – (a/(sqrt(T_g)*x*(x+b))) == P;
solx = solve(eqn,T_g,"Real",true);
solx = vpa(solx);
end
With this code, I only have the final answer.
I tried using the code below to save the answers from the for loop, but I could not save them and got the answer in the screenshot.
k=0;
for P = 2e6:2e6:70e6
k=k+1;
syms T_g
eqn = ((8.314472*T_g)/(x-b)) – (a/(sqrt(T_g)*x*(x+b))) == P;
solx = solve(eqn,T_g,"Real",true);
solx = vpa(solx);
T_g(:,k) = solx;
end
Can somebody show how to save the answers from a for loop? for loop, symbolic MATLAB Answers — New Questions
C++ code generation: is it possible to put struct declaration in a namespace?
Hello,
I am generating C++ code using Embedded Coder in v2021b. I am able to put the generated class in my chosen namespace via the Code Interface dialog:
But in my model i am using various buses, which are translated in C++ structs, which in turn reside in the global namespace.
Is there a way to specify a namespace for these structs too?Hello,
I am generating C++ code using Embedded Coder in v2021b. I am able to put the generated class in my chosen namespace via the Code Interface dialog:
But in my model i am using various buses, which are translated in C++ structs, which in turn reside in the global namespace.
Is there a way to specify a namespace for these structs too? Hello,
I am generating C++ code using Embedded Coder in v2021b. I am able to put the generated class in my chosen namespace via the Code Interface dialog:
But in my model i am using various buses, which are translated in C++ structs, which in turn reside in the global namespace.
Is there a way to specify a namespace for these structs too? c++, embedded coder, simulink MATLAB Answers — New Questions
