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How to solve a matlab function on simulink? (output cannot be an mxArray in this context)

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Inês Correia
Inês Correia 2019-1-3
评论： Walter Roberson 2020-10-20
I'm using a matlab function on simulink like this:
function [u1,u2] = fcn(To,desf,clock)
t = clock;
F=1/To;
coder.extrinsic('square');
u1=square(2*pi*F*t);
u2=square(2*pi*F*(t-desf));
end
But appears this mistake:
Function output 'u1' cannot be an mxArray in this contextoutput 'u1' cannot be an mxArray in this context. Consider preinitializing the output variable with a known type. Function 'Controlador/Controlo/Modelador/MATLAB Function1' (#248.10.12), line 1, column 11: "u1" Launch diagnostic report.
How do I solve this?

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回答（1 个）

Walter Roberson
Walter Roberson 2019-1-4
u1 = zeros(size(t));
u2 = zeros(size(t));
before doing the current assignments to u1 and u2.

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