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Jan


Last seen: 10 days ago
12,587 total contributions since 2009

It is easier to solve a problem than to guess, what the problem is.

Questions about FileExchange submissions are welcome - get my address from the code. I do not answer mails concerning questions in the forum.

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Answered
Find string in the special file
S = fileread('R2_AS - Copy.txt'); i1 = [strfind(S, 'Szenario'), Inf]; i2 = strfind(S, 'has been created.'); width = numel(...

13 days ago | 0

Answered
Namelengthmax value in different operating systems
The value of namelengthmax depends on the Matlab version only. It is the same for all operating systems. Identifiers can have ...

13 days ago | 0

Answered
Syntax Error using Fcn Block
You need round parentheses for indexing, not square brackets: (1/Mus)*(Ks*(u[3]-u[4])+Ct*(u([7]-u[2])+Kt*(u[6]-u[4])-u[5]) % =...

13 days ago | 0

| accepted

Answered
how to compute the number of image from subfolder ?
fullfile(('.\databasee\')) is exactly the same as its input: '.\databasee\'. The unnecessary parentheses are confusing only. To...

13 days ago | 1

| accepted

Answered
Different machine precision for scalars and vectors?
The only difference is the display in the command window. Matlab tries to display vectors in an abbreviated format, execpt if yo...

21 days ago | 1

| accepted

Answered
Strange behavior of the editor in the forum
1.5 years later. I tried it again. I still cannot set a flag, delete an answer or insert an image or link. Whenever I try it, t...

21 days ago | 2

Answered
Combining 2 codes to make a number counter with user input
function v = Sample() Loop = true; Count = 0; v = []; while Loop a = input('Please input a number: '); if a >= ...

26 days ago | 0

Answered
regarding 'FOR LOOP' use to plot discrete impulse response
The question is not clear yet. Do you mean: delay = repmat(1, 1, 500); amplitiudes = repmat(0.1, 1, 500); % Alternati...

26 days ago | 0

Answered
How can write loop for this algorithm?
I'm not sure, because the question is not completely clear to me. Perhaps: A = [1 1 2 2 3 3 3 4 4 8 9 10]; d = diff(A); v = f...

26 days ago | 0

Answered
counting number of textbox or patches in a matlab figure
% All text boxes: List1 = findall(HandleOfFigure, 'Type', 'uicontrol', 'Style', 'text') Count1 = numel(List1) % All patche...

26 days ago | 0

Answered
mlock not working, variables getting cleared in function switch.
Create this file: function demo(In) persistent v switch lower(In) case 'lock' mlock disp('locked'...

26 days ago | 0

Answered
nested k for loops for a parameter k
Start with simplyfying your code: Replace the 2 innermost loops: s = 0; for u1=1:2 for u2=1:2 s = s + t1(u1,v1,w1)*...

28 days ago | 1

| accepted

Answered
Adding Two Arrays Alternatively to make Third Array
% Arbitrary test data: ForceX = rand(64, 1) + 1i * rand(64, 1); ForceY = rand(64, 1) + 1i * rand(64, 1); % Methode 1: Forc...

28 days ago | 0

Answered
how to string scalar or character vector a text
You need Matlab R2018b to define stringe with double quotes. The screen shot looks like R2018a. Then use single quotes to create...

1 month ago | 0

Answered
why elseif (i==1) && j==m condition went unexecuted?
The condition "i==1 && j==m" appears twice: if i==1 && j==m % First time A(1,1)=1; elseif (i==...

1 month ago | 0

| accepted

Answered
What font do you code in?
Andale Mono and Bitstream Vera Sans Mono.

1 month ago | 1

Answered
Why Matlab does not read the input value?
This piece of code is called repeatedly. This shown code seems to be fine, so the behavior is caused the code, which calls this ...

1 month ago | 0

Answered
uiopen vs audioread, is there an advantage to one over the other for .wav files?
The function uiopen and audioread have two different jobs. While the first opens Matlab files with the apropriate application, t...

2 months ago | 0

Answered
Can't run an external program with arguments
Under Windows the folders in the PATH a separated by semicolons, not colons. Do you mean: cmdStr3 = 'set path=%path%C:\Program ...

2 months ago | 0

Answered
Slow SizeChangedFcn or ResizeFcn
The first version was not sufficient in all cases. In addition it is required to prevent a repeated entering of the code: funct...

2 months ago | 0

Answered
Slow SizeChangedFcn or ResizeFcn
One solution is to ignore the built-in resize methods and use a specific WindowsButtonDownFcn to emulate a resizing. But reinven...

2 months ago | 0

Answered
Is it possible to programmatically check whether MATLAB has been started with the "-nodisplay" option?
See also: https://www.mathworks.com/matlabcentral/answers/407059-if-matlab-desktop-elseif-matlab-nodesktop : usejava('desktop')...

2 months ago | 1

Question


Slow SizeChangedFcn or ResizeFcn
When a SizeChangedFcn or ResizeFcn takes some time, the figure size can be changed, until the display is updated. Example: func...

2 months ago | 2 answers | 0

2

answers

Answered
Vector between vectors in intervals
Remark: The inputs vectors are not normalized and only almost orthogonal: format long g v1 = [-0.0345; 0.9984; -0.0447] v2 ...

10 months ago | 0

Answered
Can anyone help me with the "Axis rotation sequence for the Euler angles"
The rotation matrix for the Euler angles in the order XYX is: s1 = sin(alpha); c1 = cos(alpha); s2 = sin(beta); c2 = cos(bet...

10 months ago | 1

Answered
Matlab has encountered an internal problem and needs to close.
The message teels you: If this problem is reproducible, please submit a Service Request via: http://www.mathworks.com/...

10 months ago | 0

Answered
Use the time step within ode15s
If the function to be integrated requires the time steps of the solver, something went wrong. I'm convinced that this is a logic...

10 months ago | 0

| accepted

Answered
Keep getting error message on my ODE function
u0 = [P0, zeros(1, N + 1)];

10 months ago | 0

| accepted

Answered
Eulers method for system of linear equations
h = 0,1; % ^ you mean 0.1 with a dot There is no need to create the accleration as array. Reply a scalar instead: funct...

10 months ago | 0

Answered
Skipping files in a set
What does "files 132, 290, and 404" mean? Are these the indices in rightfiles, or are these parts of the file name? rightfiles=...

10 months ago | 0

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