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**Content Feed**

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...

5 dagen ago | 0 answers | 0

### 0

answersParse error at x

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

14 dagen ago | 0

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(...

ongeveer een maand ago | 1

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)

ongeveer een maand ago | 0

Solving matrix equation in Matlab,

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

ongeveer een maand ago | 0

| accepted

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...

ongeveer een maand 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...

ongeveer 2 maanden ago | 2 answers | 0

### 2

answersQuestion

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 ...

ongeveer 2 maanden ago | 0 answers | 0

### 0

answersQuestion

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...

4 maanden ago | 2 answers | 0

### 2

answersHow 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...

bijna 2 jaar ago | 1

| accepted

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...

ongeveer 2 jaar ago | 0 answers | 0

### 0

answersQuestion

expression error in Documentation

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

ongeveer 2 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

ongeveer 2 jaar ago | 1 answer | 0

### 1

answerQuestion

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)

meer dan 3 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

bijna 4 jaar ago | 1 answer | 0

### 1

answerHow do i find a maximum elements in a specific row ?

A=[1,2,3;4,5,6;7,8,9]; M=max(A(2,:))

ongeveer 4 jaar ago | 1

| accepted

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...

ongeveer 4 jaar ago | 0

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...

ongeveer 4 jaar ago | 0

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 ...

ongeveer 4 jaar ago | 0

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;...

meer dan 4 jaar ago | 0

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...

meer dan 4 jaar ago | 2

| accepted

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...

meer dan 4 jaar ago | 0

| accepted

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...

meer dan 4 jaar ago | 1

| accepted

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, ...

meer dan 4 jaar ago | 1

| accepted

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 ...

meer dan 4 jaar ago | 0

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...

meer dan 4 jaar ago | 1

| accepted

Adding a column every nth column without replacing existing one

It is every 2th column. Now I put it in Answer this question rowA=size(A,1); colA=size(A,2); B=zeros(rowA,colA*2); B(:,1:2:2...

meer dan 4 jaar ago | 1

regexp help when comparing strings

The function regexpi needs the second argument expression must be a regular expression! About what is regular expression, you c...

meer dan 4 jaar ago | 0

Warning: Matrix is close to singular or badly scaled. Results may be inaccurate. RCOND = 7.252760e-17.

It seems that A-lamda*eye(n) is nearly singular, you should check it carefully! mabey you can use another computing method.

meer dan 4 jaar ago | 0