Question

How to Output Updated Parameters Value in ode Integration Process When the odeEvent is triggered ?
I was working on multi-body systems collision simulation utilize ode MATLAB function and odeEvent function. The impact between ...

10 months ago | 1 answer | 0

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answer

Question

How to Generate Smooth Transitional Trapezoidal Signal in Simulink
Hi, everyone. I want to generate a custom signal demonstrated as follow image in Simulink, I have tried the Signal Editor Block,...

1 year ago | 1 answer | 0

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Question

Changing the Topic Name in DDS Dictionary have no effect in AutoGenerated XML file
Hello, everyone. I want to create the DDS Application with DDS Blockset. I have changed the Topic Name in DDS dictionary which...

1 year ago | 1 answer | 0

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Question

How to configure ip address/port with DDS Blockset
I have build the DDS application shapesdemo.exe with DDS Blockset. I have test the communication between shapesdemo.exe with Op...

1 year ago | 1 answer | 0

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Question

FastDDS ShapesDemo Can not Communicate with DDS Blockset ShapesDemo
I followed the steps illustrated in DDS Blockset ShapeExample.mlx file and have build the shapesdemo.exe successfully. I first s...

1 year ago | 2 answers | 0

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Answered
Parse error at x
The error message shows that there is a unrecognized varialble x_initial. You should initialize it. x_initial=[.5;.5;.5];

1 year ago | 0

Answered
Trouble with handling values in anti-diagonal of a square matrix
diagVal=8; otherVal=1; nrows=8; if mod(nrows,2) % odd A=(diagVal-otherVal)*eye(nrows) + (diagVal-otherVal)*fliplr(eye(...

1 year ago | 1

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Hello, I have a cell array with the list of files I would like to delete. However I would not like to use a for loop to loop through each file to delete it.
maybe you can use cellfun. Files={'1.txt','2.txt','3.txt'}; cellfun(@delete,Files)

1 year ago | 0

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Solving matrix equation in Matlab,
Using vectorization operator vec, which transfer a matrix to a column vector through stacking matrix's columns vertically. There...

1 year ago | 0

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Making loop for a function 'xlsread'
xlsread is not recommended, you can use readtable/readmatrix/readcell depend on what type of data you want to read. The followi...

1 year ago | 1

Question

Where is the Location of CMakeLists File When I Build Simulink Model With CMake?
I want to build the shapesdemo Model which is incorporated in DDS Blockset Examples. I follow the steps illustrated in accompani...

1 year ago | 2 answers | 0

2

answers

Question

CMake Error When Building DDS Blockset shapesdemo Example Model
I want to build the shapesdemo Simulink Model which is incorporated in DDS Blockset Examples. I follow the steps illustrated in ...

1 year ago | 0 answers | 0

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Question

How to implement Ethernet Communication in Simulink Desktop Real-Time
I want to use Ethernet Communication within Simulink Desktop Real-Time. But I do not find corresponding I/O block in Simulin...

2 years ago | 2 answers | 0

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Answered
How to take the mean of each four adjacent position in a matrix?
A=randi(10,1536,2048); % test Matrix M=zeros(768,1024); % result Matrix for row=1:768 for col=1:1024 M(row,col...

3 years ago | 1

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Question

Can not create MATLAB string without MATLAB runtime being initialized.
I create a .NET assembly using a function written in MATLAB. When I want to create a MATLAB String using MWStringArray Class, it...

3 years ago | 1 answer | 0

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Question

expression error in Documentation
I think the expression in the image shown below should be , whose derivative is equal to ! Documentation Link

3 years ago | 1 answer | 0

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Question

importrobot but can not show visual geometries.
I try to import a robot model by using importrobot function with the input is a Simscape Multibody model. However, when I s...

3 years ago | 1 answer | 0

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Question

MATLAB function cross can be applied to symbolic object but Documentation does not explain?
syms x y z vec1=[x y z]; vec2=[x y z]; cross(vec1,vec2)

5 years ago | 1 answer | 0

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Question

How to build dynamic model in SimMechanics ?
I want to know what method is used by SimMechanics to build dynamic model. Maybe Newton-Euler Method or Lagrangian Form...

5 years ago | 1 answer | 0

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How do i find a maximum elements in a specific row ?
A=[1,2,3;4,5,6;7,8,9]; M=max(A(2,:))

5 years ago | 1

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Answered
rand command give different answer
All the random number functions, rand, randn, randi, and randperm, draw values from a shared random number generator. Every time...

5 years ago | 0

Answered
How we can generate generate a noise signal from gauss distribution ??
This is a example for generating a bivariate normal distribusion which is a duplicate of MATLAB Documentation. Maybe it can help...

5 years ago | 0

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how to fix this error matrix dimension must agree
The p1 matrix is 1x100. nerst(:) will turn a matrix nerst which is 1x100 to 100x1. A matrix with size of 1x100 can't | with ...

6 years ago | 0

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hello everyone, i am a noob using matlab. please help me i have an equation and 2 unknown variable
The equation μ=(μmax*Cs)/(Ks+Cs ) can be converted to μmax*Cs-Ks*μ=μ*Cs. μ=[0.011;0.059;0.053;0.149;0.125]; Cs=[430;428;...

6 years ago | 0

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How can I iterate all three cases at once in one script?
Maybe you can use a for loop. You can store functions g1(x), g2(x), g3(x) as a cell array. Such as g1=@(x) sqrt(2*x+3); g2=@(x...

6 years ago | 2

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Answered
Hello. I have to write a function called occurrence that tests whether a character exists in a string. If it is present, display true and the position (index) of the character. If it is not present, return inf. it gives me an error in line 2. help?!?
function find_letter(L, string) n= length(L); not_found = true; for k = 1:n if isequal(L(k), strin...

6 years ago | 0

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Answered
How to integrate this function numerically?
You can use Euler formula. V(n+1)=V(n)+h*f(R,V(n)), which f(R,V) is the right side of differential equation. But you need to kn...

6 years ago | 1

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Answered
How can I use a for loop to select values from a table that meet two conditions?
m=1; for i=1:height(tab) if(Aerobic(i)~=Anaerobic(i)) && Aerobic(i)>=0 && Anaerobic(i)>=0 secmet(m, 1:3)=tab(i, ...

6 years ago | 1

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Answered
How can I do this Matrix data operation?
It is Unworkable! For eaxample, every row of new matrix need that there must exist current and angle pairs which generate same ...

6 years ago | 0

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How to collect a fraction in a certain equation?
Hi Fahmy. I try the matlab function factor, but it get the result as following. syms a b c d e f=(a/3)+(b/3)+(c/3)+(d/3)+(e/3...

6 years ago | 1

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