I am using Embedded Coder in MATLAB R2025b and unloaded a package from the "Memory Section" tab of the Embedded Coder Dictionary, but it still appears in the "Memory Sections" list.
How can I make sure the package is properly unloaded and removed from the "Memory Sections" list?I am using Embedded Coder in MATLAB R2025b and unloaded a package from the "Memory Section" tab of the Embedded Coder Dictionary, but it still appears in the "Memory Sections" list.
How can I make sure the package is properly unloaded and removed from the "Memory Sections" list? I am using Embedded Coder in MATLAB R2025b and unloaded a package from the "Memory Section" tab of the Embedded Coder Dictionary, but it still appears in the "Memory Sections" list.
How can I make sure the package is properly unloaded and removed from the "Memory Sections" list? embeddedcoderdictionary, unloadpackage, memorysections MATLAB Answers — New Questions

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I have a Simulink model where one part is implemented with Embedded Coder on a bare-metal MicroBlaze soft processor, and another part is implemented with HDL Coder as an IP core that exposes AXI4/AXI4-Lite memory-mapped registers.
How can I read and write those registers from the C code generated by Embedded Coder running on the MicroBlaze?I have a Simulink model where one part is implemented with Embedded Coder on a bare-metal MicroBlaze soft processor, and another part is implemented with HDL Coder as an IP core that exposes AXI4/AXI4-Lite memory-mapped registers.
How can I read and write those registers from the C code generated by Embedded Coder running on the MicroBlaze? I have a Simulink model where one part is implemented with Embedded Coder on a bare-metal MicroBlaze soft processor, and another part is implemented with HDL Coder as an IP core that exposes AXI4/AXI4-Lite memory-mapped registers.
How can I read and write those registers from the C code generated by Embedded Coder running on the MicroBlaze? microblaze, axi4, axi4-lite, bare-metal, memorymappedregisters, devicedriverblocks, tcpclient MATLAB Answers — New Questions

​

I have been saving data in structures and with my version of Matlab (2025B) it does not seem to update these variables in the viewer. I am currently developing some scripts, so I am essentially just running all the code from the command line. I don’t think the code is important; it allocates matrices in a structure based on the data it reads in, and then calculates what the values are. Some psuedo code is below:
NewData=’DataSet_X’;
Data.(NewData).Value=zeros(size(X,1),2);
for I=1:length(X)
[Data.(NewData).Value(I,1),Data.(NewData).Value(I,2)] = ValueCalcFunction(Dataset X, Ith row)
end
Anyway, if I have Data open in the Variables window It shows the Value field as a matrix full of zeros even after it has been updated. If I double click the field and open just it in the variable window, it shows that it has been updated with the correct values. It would be nice to see it in the structure variable… Here is a screen capture that demonstrates what I mean:

Any ideas how can I force a refresh of the variable viewer?
I have a similar problem with the workspace not updating, but I found I can update it by pressing F5 or chosing Refresh from the menu. These options are not available in the variable viewer.

Thanks!I have been saving data in structures and with my version of Matlab (2025B) it does not seem to update these variables in the viewer. I am currently developing some scripts, so I am essentially just running all the code from the command line. I don’t think the code is important; it allocates matrices in a structure based on the data it reads in, and then calculates what the values are. Some psuedo code is below:
NewData=’DataSet_X’;
Data.(NewData).Value=zeros(size(X,1),2);
for I=1:length(X)
[Data.(NewData).Value(I,1),Data.(NewData).Value(I,2)] = ValueCalcFunction(Dataset X, Ith row)
end
Anyway, if I have Data open in the Variables window It shows the Value field as a matrix full of zeros even after it has been updated. If I double click the field and open just it in the variable window, it shows that it has been updated with the correct values. It would be nice to see it in the structure variable… Here is a screen capture that demonstrates what I mean:

Any ideas how can I force a refresh of the variable viewer?
I have a similar problem with the workspace not updating, but I found I can update it by pressing F5 or chosing Refresh from the menu. These options are not available in the variable viewer.

Thanks! I have been saving data in structures and with my version of Matlab (2025B) it does not seem to update these variables in the viewer. I am currently developing some scripts, so I am essentially just running all the code from the command line. I don’t think the code is important; it allocates matrices in a structure based on the data it reads in, and then calculates what the values are. Some psuedo code is below:
NewData=’DataSet_X’;
Data.(NewData).Value=zeros(size(X,1),2);
for I=1:length(X)
[Data.(NewData).Value(I,1),Data.(NewData).Value(I,2)] = ValueCalcFunction(Dataset X, Ith row)
end
Anyway, if I have Data open in the Variables window It shows the Value field as a matrix full of zeros even after it has been updated. If I double click the field and open just it in the variable window, it shows that it has been updated with the correct values. It would be nice to see it in the structure variable… Here is a screen capture that demonstrates what I mean:

Any ideas how can I force a refresh of the variable viewer?
I have a similar problem with the workspace not updating, but I found I can update it by pressing F5 or chosing Refresh from the menu. These options are not available in the variable viewer.

Thanks! variable viewer MATLAB Answers — New Questions

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when installing the Free trial student version of matlab 2026 i get this error "An attempt to create a new profile for an email address already in use was detected." even though i am not creating a new account , i am using my account that i am signed in on matlab site to download the license how do i fix that problemwhen installing the Free trial student version of matlab 2026 i get this error "An attempt to create a new profile for an email address already in use was detected." even though i am not creating a new account , i am using my account that i am signed in on matlab site to download the license how do i fix that problem when installing the Free trial student version of matlab 2026 i get this error "An attempt to create a new profile for an email address already in use was detected." even though i am not creating a new account , i am using my account that i am signed in on matlab site to download the license how do i fix that problem matlab MATLAB Answers — New Questions

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I cannot login to my matlab using my school account. It always stuck on the step after I login through school portal. I deleted my matlab and try to reinstall, also for a newer version. When I install matlab R2025b, I failed again at the login step. After I login my school portal, it says:
"
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
null
There was an unexpected error (type=null, status=null).
"

Can anyone help me with this?I cannot login to my matlab using my school account. It always stuck on the step after I login through school portal. I deleted my matlab and try to reinstall, also for a newer version. When I install matlab R2025b, I failed again at the login step. After I login my school portal, it says:
"
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
null
There was an unexpected error (type=null, status=null).
"

Can anyone help me with this? I cannot login to my matlab using my school account. It always stuck on the step after I login through school portal. I deleted my matlab and try to reinstall, also for a newer version. When I install matlab R2025b, I failed again at the login step. After I login my school portal, it says:
"
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
null
There was an unexpected error (type=null, status=null).
"

Can anyone help me with this? login, installation MATLAB Answers — New Questions

​

I have a query regarding MATLAB code to plot SOP using analytical expression given by :

where
begin{equation}
begin{aligned}
Theta(u,y,v)
&= frac{1}{A_k(u,y,v)}
exp!left(
frac{lambda_Y lambda_Z}{alpha A_k(u,y,v)}
– A_k(u,y,v)frac{1}{bar{gamma}} right. \
&quad left.
– lambda_U u – lambda_V v
right)
E_1!left(
frac{lambda_Y lambda_Z}{alpha A_k(u,y,v)}
right).
end{aligned}
end{equation}

Here is what i tried for code of SOP (analytical):

% This code is for analytical expression of SOP of user k
clc; clear all; close all;
%% Parameters
lambda_X = 1; % rate parameter of the exponential distribution
lambda_Y = 1;
lambda_Z = 1;
lambda_U = 1;
lambda_V = 1;
alpha = 0.1;
k = 1;
a1 = 0.1;
a2= 0.3;
a3 = 0.6;
a = [a1 a2 a3];
R1 = 0.1; % nearest
R2 = 0.2; % middle
R3 = 0.3; % farthest
R = [R1 R2 R3];
beta = 0.8;
t1 = 1*1e5; % samples
t2 = 1e4;
D = (1 – beta) + beta * sum(a(1:k-1));
SOP_ana = [];
for snr_user_dB = 0:5:80

snr_user = 10^(snr_user_dB/10);
snr_eve_dB = 0; % in dB
snr_eve = 10^(snr_eve_dB/10);
accum = 0;
for iter = 1:t1

% Generate all RVs together
y = exprnd(1/lambda_Y);
u = exprnd(1/lambda_U);
v = exprnd(1/lambda_V);
% Gamma_e
Gamma_e = (beta * a(k) * u) / …
(u*D + alpha*y*v + (1/snr_eve));
% t(u,y,v)
t_val = (2^R(k))*(1 + Gamma_e) – 1;
% A_k
if beta*a(k) – t_val*D <= 0
continue;
end
A_k = (lambda_X * t_val) / (beta*a(k) – t_val*D);
% Theta
arg = (lambda_Y * lambda_Z)/(alpha*A_k);
Theta = (1/A_k) * …
exp(arg – A_k*(1/snr_user) …
– lambda_U*u – lambda_V*v) …
* expint(arg);
accum = accum + Theta;
end
SOP = 1 – (lambda_U * lambda_V * lambda_Y * lambda_Z / alpha) …
* (accum / t1);
SOP_ana = [SOP_ana SOP];
end
snr_axis = 0:5:80;
figure;
%semilogy(snr_axis, SOP_ana, ‘r-o’,’LineWidth’,1.5);
plot(snr_axis, SOP_ana, ‘r-o’,’LineWidth’,1.5);
grid on;
xlabel(‘SNR (dB)’);
ylabel(‘SOP’);
title(‘SOP vs SNR’);

The output of above code should match the simulation of SOP whose code is given by

% This code is for simulation expression of SOP of user k
%clc; clear all; close all;
%% Parameters
lambda_X = 1; % rate parameter of the exponential distribution
lambda_Y = 1;
lambda_Z = 1;
lambda_U = 1;
lambda_V = 1;
alpha = 0.1;
k = 1;
a1 = 0.1;
a2= 0.3;
a3 = 0.6;
a = [a1 a2 a3];
R1 = 0.1; % nearest
R2 = 0.2; % middle
R3 = 0.3; % farthest
R = [R1 R2 R3];
beta = 0.8;
t1 = 10*1e4; % samples
D = (1 – beta) + beta * sum(a(1:k-1));
SOP_sim = []; count = 0;
for snr_user_dB = 0:5:80

snr_user = 10^(snr_user_dB/10);
snr_eve_dB = 0; % in dB
snr_eve = 10^(snr_eve_dB/10);

for iter = 1:t1
X = exprnd(1/lambda_X); % mean is 1/lambda
Y = exprnd(1/lambda_Y);
Z = exprnd(1/lambda_Z);
U = exprnd(1/lambda_U);
V = exprnd(1/lambda_V);

Gamma_k = (beta * a(k) * X) / …
( X * D + alpha * Y * Z + (1/snr_user));
Gamma_e = (beta * a(k) * U) / …
( U * D + alpha * Y * V + (1/snr_eve));

if Gamma_k < ((2^R(k))*(1+Gamma_e)-1)
%if Gamma_k < (2^R(k)-1)
count = count + 1;
end

end

SOP = count / t1;

SOP_sim = [SOP_sim SOP];
count = 0;
end
snr_axis = 0:5:80;
figure;
%semilogy(snr_axis, SOP_sim, ‘r-o’,’LineWidth’,1.5);
plot(snr_axis, SOP_sim, ‘r-o’,’LineWidth’,1.5);
grid on;
xlabel(‘SNR (dB)’);
ylabel(‘SOP’);
title(‘SOP vs SNR’);

I am not getting what wrong i am doing in analytical SOP code…

Any help in this regard is highly appreciatedI have a query regarding MATLAB code to plot SOP using analytical expression given by :

where
begin{equation}
begin{aligned}
Theta(u,y,v)
&= frac{1}{A_k(u,y,v)}
exp!left(
frac{lambda_Y lambda_Z}{alpha A_k(u,y,v)}
– A_k(u,y,v)frac{1}{bar{gamma}} right. \
&quad left.
– lambda_U u – lambda_V v
right)
E_1!left(
frac{lambda_Y lambda_Z}{alpha A_k(u,y,v)}
right).
end{aligned}
end{equation}

Here is what i tried for code of SOP (analytical):

% This code is for analytical expression of SOP of user k
clc; clear all; close all;
%% Parameters
lambda_X = 1; % rate parameter of the exponential distribution
lambda_Y = 1;
lambda_Z = 1;
lambda_U = 1;
lambda_V = 1;
alpha = 0.1;
k = 1;
a1 = 0.1;
a2= 0.3;
a3 = 0.6;
a = [a1 a2 a3];
R1 = 0.1; % nearest
R2 = 0.2; % middle
R3 = 0.3; % farthest
R = [R1 R2 R3];
beta = 0.8;
t1 = 1*1e5; % samples
t2 = 1e4;
D = (1 – beta) + beta * sum(a(1:k-1));
SOP_ana = [];
for snr_user_dB = 0:5:80

snr_user = 10^(snr_user_dB/10);
snr_eve_dB = 0; % in dB
snr_eve = 10^(snr_eve_dB/10);
accum = 0;
for iter = 1:t1

% Generate all RVs together
y = exprnd(1/lambda_Y);
u = exprnd(1/lambda_U);
v = exprnd(1/lambda_V);
% Gamma_e
Gamma_e = (beta * a(k) * u) / …
(u*D + alpha*y*v + (1/snr_eve));
% t(u,y,v)
t_val = (2^R(k))*(1 + Gamma_e) – 1;
% A_k
if beta*a(k) – t_val*D <= 0
continue;
end
A_k = (lambda_X * t_val) / (beta*a(k) – t_val*D);
% Theta
arg = (lambda_Y * lambda_Z)/(alpha*A_k);
Theta = (1/A_k) * …
exp(arg – A_k*(1/snr_user) …
– lambda_U*u – lambda_V*v) …
* expint(arg);
accum = accum + Theta;
end
SOP = 1 – (lambda_U * lambda_V * lambda_Y * lambda_Z / alpha) …
* (accum / t1);
SOP_ana = [SOP_ana SOP];
end
snr_axis = 0:5:80;
figure;
%semilogy(snr_axis, SOP_ana, ‘r-o’,’LineWidth’,1.5);
plot(snr_axis, SOP_ana, ‘r-o’,’LineWidth’,1.5);
grid on;
xlabel(‘SNR (dB)’);
ylabel(‘SOP’);
title(‘SOP vs SNR’);

The output of above code should match the simulation of SOP whose code is given by

% This code is for simulation expression of SOP of user k
%clc; clear all; close all;
%% Parameters
lambda_X = 1; % rate parameter of the exponential distribution
lambda_Y = 1;
lambda_Z = 1;
lambda_U = 1;
lambda_V = 1;
alpha = 0.1;
k = 1;
a1 = 0.1;
a2= 0.3;
a3 = 0.6;
a = [a1 a2 a3];
R1 = 0.1; % nearest
R2 = 0.2; % middle
R3 = 0.3; % farthest
R = [R1 R2 R3];
beta = 0.8;
t1 = 10*1e4; % samples
D = (1 – beta) + beta * sum(a(1:k-1));
SOP_sim = []; count = 0;
for snr_user_dB = 0:5:80

snr_user = 10^(snr_user_dB/10);
snr_eve_dB = 0; % in dB
snr_eve = 10^(snr_eve_dB/10);

for iter = 1:t1
X = exprnd(1/lambda_X); % mean is 1/lambda
Y = exprnd(1/lambda_Y);
Z = exprnd(1/lambda_Z);
U = exprnd(1/lambda_U);
V = exprnd(1/lambda_V);

Gamma_k = (beta * a(k) * X) / …
( X * D + alpha * Y * Z + (1/snr_user));
Gamma_e = (beta * a(k) * U) / …
( U * D + alpha * Y * V + (1/snr_eve));

if Gamma_k < ((2^R(k))*(1+Gamma_e)-1)
%if Gamma_k < (2^R(k)-1)
count = count + 1;
end

end

SOP = count / t1;

SOP_sim = [SOP_sim SOP];
count = 0;
end
snr_axis = 0:5:80;
figure;
%semilogy(snr_axis, SOP_sim, ‘r-o’,’LineWidth’,1.5);
plot(snr_axis, SOP_sim, ‘r-o’,’LineWidth’,1.5);
grid on;
xlabel(‘SNR (dB)’);
ylabel(‘SOP’);
title(‘SOP vs SNR’);

I am not getting what wrong i am doing in analytical SOP code…

Any help in this regard is highly appreciated I have a query regarding MATLAB code to plot SOP using analytical expression given by :

where
begin{equation}
begin{aligned}
Theta(u,y,v)
&= frac{1}{A_k(u,y,v)}
exp!left(
frac{lambda_Y lambda_Z}{alpha A_k(u,y,v)}
– A_k(u,y,v)frac{1}{bar{gamma}} right. \
&quad left.
– lambda_U u – lambda_V v
right)
E_1!left(
frac{lambda_Y lambda_Z}{alpha A_k(u,y,v)}
right).
end{aligned}
end{equation}

Here is what i tried for code of SOP (analytical):

% This code is for analytical expression of SOP of user k
clc; clear all; close all;
%% Parameters
lambda_X = 1; % rate parameter of the exponential distribution
lambda_Y = 1;
lambda_Z = 1;
lambda_U = 1;
lambda_V = 1;
alpha = 0.1;
k = 1;
a1 = 0.1;
a2= 0.3;
a3 = 0.6;
a = [a1 a2 a3];
R1 = 0.1; % nearest
R2 = 0.2; % middle
R3 = 0.3; % farthest
R = [R1 R2 R3];
beta = 0.8;
t1 = 1*1e5; % samples
t2 = 1e4;
D = (1 – beta) + beta * sum(a(1:k-1));
SOP_ana = [];
for snr_user_dB = 0:5:80

snr_user = 10^(snr_user_dB/10);
snr_eve_dB = 0; % in dB
snr_eve = 10^(snr_eve_dB/10);
accum = 0;
for iter = 1:t1

% Generate all RVs together
y = exprnd(1/lambda_Y);
u = exprnd(1/lambda_U);
v = exprnd(1/lambda_V);
% Gamma_e
Gamma_e = (beta * a(k) * u) / …
(u*D + alpha*y*v + (1/snr_eve));
% t(u,y,v)
t_val = (2^R(k))*(1 + Gamma_e) – 1;
% A_k
if beta*a(k) – t_val*D <= 0
continue;
end
A_k = (lambda_X * t_val) / (beta*a(k) – t_val*D);
% Theta
arg = (lambda_Y * lambda_Z)/(alpha*A_k);
Theta = (1/A_k) * …
exp(arg – A_k*(1/snr_user) …
– lambda_U*u – lambda_V*v) …
* expint(arg);
accum = accum + Theta;
end
SOP = 1 – (lambda_U * lambda_V * lambda_Y * lambda_Z / alpha) …
* (accum / t1);
SOP_ana = [SOP_ana SOP];
end
snr_axis = 0:5:80;
figure;
%semilogy(snr_axis, SOP_ana, ‘r-o’,’LineWidth’,1.5);
plot(snr_axis, SOP_ana, ‘r-o’,’LineWidth’,1.5);
grid on;
xlabel(‘SNR (dB)’);
ylabel(‘SOP’);
title(‘SOP vs SNR’);

The output of above code should match the simulation of SOP whose code is given by

% This code is for simulation expression of SOP of user k
%clc; clear all; close all;
%% Parameters
lambda_X = 1; % rate parameter of the exponential distribution
lambda_Y = 1;
lambda_Z = 1;
lambda_U = 1;
lambda_V = 1;
alpha = 0.1;
k = 1;
a1 = 0.1;
a2= 0.3;
a3 = 0.6;
a = [a1 a2 a3];
R1 = 0.1; % nearest
R2 = 0.2; % middle
R3 = 0.3; % farthest
R = [R1 R2 R3];
beta = 0.8;
t1 = 10*1e4; % samples
D = (1 – beta) + beta * sum(a(1:k-1));
SOP_sim = []; count = 0;
for snr_user_dB = 0:5:80

snr_user = 10^(snr_user_dB/10);
snr_eve_dB = 0; % in dB
snr_eve = 10^(snr_eve_dB/10);

for iter = 1:t1
X = exprnd(1/lambda_X); % mean is 1/lambda
Y = exprnd(1/lambda_Y);
Z = exprnd(1/lambda_Z);
U = exprnd(1/lambda_U);
V = exprnd(1/lambda_V);

Gamma_k = (beta * a(k) * X) / …
( X * D + alpha * Y * Z + (1/snr_user));
Gamma_e = (beta * a(k) * U) / …
( U * D + alpha * Y * V + (1/snr_eve));

if Gamma_k < ((2^R(k))*(1+Gamma_e)-1)
%if Gamma_k < (2^R(k)-1)
count = count + 1;
end

end

SOP = count / t1;

SOP_sim = [SOP_sim SOP];
count = 0;
end
snr_axis = 0:5:80;
figure;
%semilogy(snr_axis, SOP_sim, ‘r-o’,’LineWidth’,1.5);
plot(snr_axis, SOP_sim, ‘r-o’,’LineWidth’,1.5);
grid on;
xlabel(‘SNR (dB)’);
ylabel(‘SOP’);
title(‘SOP vs SNR’);

I am not getting what wrong i am doing in analytical SOP code…

Any help in this regard is highly appreciated for loop, mathematics MATLAB Answers — New Questions

​

In the Time domain section of the course when I use the step function to plot the grpah it keeps saying i am wrong even though it is the exact same code and graph. Those anyone have anny solutions
below is the code
s = tf(‘s’);
quadcopter_ol = 0.04133/(s + 0.01479);
controller = zpk(-5,0,100);

Task 1
step(quadcopter_ol)In the Time domain section of the course when I use the step function to plot the grpah it keeps saying i am wrong even though it is the exact same code and graph. Those anyone have anny solutions
below is the code
s = tf(‘s’);
quadcopter_ol = 0.04133/(s + 0.01479);
controller = zpk(-5,0,100);

Task 1
step(quadcopter_ol) In the Time domain section of the course when I use the step function to plot the grpah it keeps saying i am wrong even though it is the exact same code and graph. Those anyone have anny solutions
below is the code
s = tf(‘s’);
quadcopter_ol = 0.04133/(s + 0.01479);
controller = zpk(-5,0,100);

Task 1
step(quadcopter_ol) control system analysis techniques, time-domain analysis MATLAB Answers — New Questions

​

Hello,
I am trying to simulate the behavior of an IMU on a robot in Simulink. As a first step, I tested it on a simpler structure than my final system. However, with the model below, I get the following error:
“The IMU block does not support continuous sample time inputs.”
I tried changing the solver, but it did not resolve the issue.
Would you have any idea what what changes are needed to properly use the IMU block in this context?
Thank you in advance for your help.Hello,
I am trying to simulate the behavior of an IMU on a robot in Simulink. As a first step, I tested it on a simpler structure than my final system. However, with the model below, I get the following error:
“The IMU block does not support continuous sample time inputs.”
I tried changing the solver, but it did not resolve the issue.
Would you have any idea what what changes are needed to properly use the IMU block in this context?
Thank you in advance for your help. Hello,
I am trying to simulate the behavior of an IMU on a robot in Simulink. As a first step, I tested it on a simpler structure than my final system. However, with the model below, I get the following error:
“The IMU block does not support continuous sample time inputs.”
I tried changing the solver, but it did not resolve the issue.
Would you have any idea what what changes are needed to properly use the IMU block in this context?
Thank you in advance for your help. imu, simscape, continuous, discrete MATLAB Answers — New Questions

​

I have a C/C++ MEX file compiled by the MinGW64 compiler with the -g flag. How can I debug my MEX through Visual Studio Code?I have a C/C++ MEX file compiled by the MinGW64 compiler with the -g flag. How can I debug my MEX through Visual Studio Code? I have a C/C++ MEX file compiled by the MinGW64 compiler with the -g flag. How can I debug my MEX through Visual Studio Code? mex, mingw, debugging, vscode, c, c++ MATLAB Answers — New Questions

​