a part of the function has:
if the input A (a vector) matches what is stated, the statement runs.
if A == [1,3,3] % statement end
and it gives me this error: 'Unexpected use of '[' in a scalar context. How can I fix this?
When you use A == [1 3 3] ;
With this operator ==, MATLAB expects a scalar value, but the way used here, it gives array as output. So the warning pops out. The way you use, won't work out. YOu need to use the operator == with a scalar value, so the if condition works fine.