Input argument "U" is undefined.

2022 4 6
1 个回答
更新时间：2022 4 6
8 次查看（30 天）

0 个投票

Hi everyone! I don't know what to do with this error. I've tried so many times.
I know it's a very simply case, but I'm new to Matlab.
This is my code.
function Y=fpendolo(U)
u=U(1);
x1=U(2);
x2=U(3);
and everytime it says ''??? Input argument "U" is undefined.
Error in ==> fpendolo at 10
u=U(1);''
Thanks everyone!

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回答（1 个）

David Hill
David Hill 2022-4-6

0 个投票

U=1:3;%setup variable
[u,x1,x2]=fpendolo(U);%call function
function [u,x1,x2]=fpendolo(U)
u=U(1);
x1=U(2);
x2=U(3);
end

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