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Find elements in a matrix
You can get the indices with: idx = A >= 30 & A <= 65 To know the number of values corresponding to the condition: numel(find...

4年以上前 | 0

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Is there any maximum for the size of matlab table?
It depends on what you want to store into this table. You can have a look here to find more informations: https://mathworks.com...

4年以上前 | 0

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function rand with variables
You can use something like this, adapt it to your case: a = 1; b = 2; c = 3; A = [a b c]; nb = 10; vec = zeros(1,nb); for...

4年以上前 | 0

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('tf' requires one of the following) "tf commend is not working" HELP PLS!
Your code is right, but you do not have the required toolbox. The function tf is part of the 4 toolbox listed in the error messa...

4年以上前 | 6

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Any methods to solve optimal control indirect method such as Pontryagin Minimum Principle?
Hi, here are some related questions to start with: https://mathworks.com/matlabcentral/answers/440335-how-to-implement-optimal...

4年以上前 | 0

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Vectors must be the same length.
What lines causes the error ? Following one ? g = plot(t,delta_omega_laser ); t and delta_omega_laser must have the same leng...

4年以上前 | 0

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assign variable name to Function Output Variables
Why don't you just change [wave_rms]=waveform(wave) into [Uph_rms]=waveform(wave) ?

4年以上前 | 0

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Taking in a function as an argument
How is testfunc defined ? Here is a simple working example: function out = func(inputfunc, constant1, constant2) out = inputf...

4年以上前 | 0

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How idx runs and give its value ?
abs(a-n) = 1.8000 2.0000 4.0000 6.3000 6.5000 then min(abs(a-n)) = 1.8, and the location of this minimum value...

4年以上前 | 0

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Servo control without controller
have you tried something so far ? Do you need help to connect matlab and the motor ? In this case you should specify what is y...

4年以上前 | 0

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plot a defined function
plot the function N(T) versus T in range 0.1 to 14 T is known ? T =[0.1 : 14 ] ? And you want to plot ne(T) ? In this case yo...

4年以上前 | 0

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Problem with Discrete Controller Design
It could actually be both. It is indeed possible that the discretization with a given frequency brings problems such as oversa...

4年以上前 | 0

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If the values are almost equal to each other,how do i plot the figure to see its curve? (not straight line )
I am not sure to understand the question, but the following code answer your question ? a=[1 2 3 4]; x=[x1 x2 x3 x4]; % your d...

4年以上前 | 0

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obsvf confused by documentation
You were right, the documentation for obsvf function has been updated recently: https://mathworks.com/help/control/ref/obsvf.ht...

4年以上前 | 0

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HOW TO MAKE FUNCTION HANDLING PROPERLY IN DIFFERENT MATLAB FILES?
The way to call functions in matlab is explained here: https://fr.mathworks.com/matlabcentral/answers/179803-calling-a-function...

4年以上前 | 0

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How to take the average of different initial conditions
It is not clear what you want to do from the code you posted, especially the first loop : for j = 1: length (g) ... end ...

4年以上前 | 0

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Not enough input argumaents
It depends on how you call this function, try to call if from the command window : x = 1; y = 2; s = add(x,y); And then you...

5年弱前 | 0

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how to find matching elements of two colums vectors
It depends what you want exactly. Let's say you have two vectors a and b: a=[1;2;3;4]; b=[0;2;3;5]; To find the indices wher...

5年弱前 | 0

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matlab 2014b windows 10
Follow this link and select the matlab version you want to download : https://mathworks.com/downloads/web_downloads/select_rele...

5年弱前 | 0

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How to caculate a value for a step - the previous step
It depends on what you mean by "I have a value x". It is actuallyquite easy to do for a straightforward example, but it depends...

5年弱前 | 0

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Restrict user string inputs
The problem comes from your conditions: ~strcmp(y,'i') | ~strcmp(y,'m') This is never true, even if you enter 'i' or 'm'. Wh...

約5年前 | 0

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How can I call a .m function with App Designer?
Yes it is possible, have a look at this tutorial and introduction video: https://mathworks.com/help/matlab/creating_guis/create...

約5年前 | 0

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facing problem in writing complex programme
Can you show the entire error message ? You have at least one error at line 5: part1=beta /lamda(0.5-delta+delta^2); sayi...

約5年前 | 0

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how to use a graph from user input as input to the matlab program
In this case, I recommend you use lsim: https://mathworks.com/help/control/ref/lsim.html

約5年前 | 0

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How can I plot an internal value in a state space model?
Given that the voltage is not a directly controlled input, I do no know how to get this value during a simulation. Is u the vol...

約5年前 | 0

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how to form matrix
From this documentation: https://mathworks.com/help/matlab/learn_matlab/matrices-and-arrays.html Try: m = [ m11 m12 ...

約5年前 | 0

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Expressing an even number in powers of 2 and a multiple of an odd number.
I would do something like a = 80; r = 1; d = a/2; while mod(d,2)==0 r=r+1; d=d/2; end

約5年前 | 0

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Simulink Serial Receive, Selection of communication port
This was a problem related to permission right, I had to acces to the device as an admin to be able to communicate with it.

約5年前 | 0

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Nyquist plot from 0 to Inf (only frequencies > 0)
If you specify the frequency as W = {WMIN,WMAX} WMIN and WMAX are real frequencies satisfying 0<=WMIN<WMAX<=Inf. So by settin...

約5年前 | 0

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How can the output be written in a new column (without overwriting the previous one)
You can use cell for that. You can try and adapt the following example: a=cell(3,1); for i=1:3 a{i}=ones(i,1); end a ...

約5年前 | 0