I am having a problem with matrix dimension
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Hello,
I guess the problem is with y (line 147) as its not taking value from section %% output y.
回答（1 个）
Your y and yref are defined as globals, but they do not get a value anywhere. Therefore I get this error message running your code:
A1*x + B*(u)*x + Gv
Error using *
Incorrect dimensions for matrix multiplication. Check that the number of
columns in the first matrix matches the number of rows in
the second matrix. To perform elementwise multiplication, use '.*'.
because u is the empty matrix.
This is the typical debugging horror, if you use global variables. Avoid this bad programming practice to get maintainable code.
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