learning to create functions in matlab(R2019a) but every time i try to do so , The value assigned might be un used (used a)create the file in code file, Am a beginner

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function myRand
a=1+rand(3,4)*9
end
thats it..am a beginner learning to create functions

Answers (1)

Bjorn Gustavsson
Bjorn Gustavsson on 8 Dec 2021
Edited: Bjorn Gustavsson on 8 Dec 2021
Ok, here's what you're missing in this example:
function a = myRand
a=1+rand(3,4)*9;
end
Now your function has an output-variable, a, that the function will return when called. You can also have multiple output-variables:
function [a,b] myRand
a=1+rand(3,4)*9;
b = sin(a);
end
For the cases where that is prefereable.
Since you are a beginner you might consider looking over the "on-ramp" material on the site: on-ramp.
HTH

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