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265 total contributions since 2017

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Answered
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...

3 days ago | 0

Answered
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...

3 days ago | 0

Solved


Find the maximum number of decimal places in a set of numbers
Given a vector or matrix of values, calculate the maximum number of decimal places within the input. Trailing zeros do not coun...

4 days ago

Answered
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 days ago | 0

Solved


Check that number is whole number
Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. <http://en.wikipedia.org/wiki/Whole...

4 days ago

Answered
('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 days ago | 1

| accepted

Answered
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 days ago | 0

Answered
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...

9 days ago | 0

| accepted

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

9 days ago | 0

Answered
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...

9 days ago | 0

Answered
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...

9 days ago | 0

Answered
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...

26 days ago | 0

Answered
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...

26 days ago | 0

Answered
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...

1 month ago | 0

Answered
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...

2 months ago | 0

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

2 months ago | 0

Answered
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...

2 months ago | 0

| accepted

Answered
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 ...

3 months ago | 0

Answered
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...

4 months ago | 0

Answered
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 months ago | 0

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

6 months ago | 0

Answered
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...

7 months ago | 0

Answered
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...

7 months ago | 0

Answered
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...

7 months ago | 0

| accepted

Answered
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...

8 months ago | 0

| accepted

Answered
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

8 months ago | 0

Solved


Is my wife right?
Regardless of input, output the string 'yes'.

8 months ago

Solved


Make roundn function
Make roundn function using round. x=0.55555 y=function(x,1) y=1 y=function(x,2) y=0.6 y=function(x,3) ...

8 months ago

Solved


Rounding off numbers to n decimals
Inspired by a mistake in one of the problems I created, I created this problem where you have to round off a floating point numb...

8 months ago

Solved


Matlab Basics - Rounding III
Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000

8 months ago

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