Inner matrices error question

So, inner matrices supposedly do not agree, but both H and H2 are 1x401 in a size. Here is my code w=-pi:(pi/200):pi; H=(0.5*cos(0.5.*w)+0.5*cos(1.5.*w)); H2=(exp(-i*1.5.*w)); HH=H*H2;

Can someone help me, I m new with this

Answer 1

[Torsten]

You can't matrix-multiply a 1x401 array with a 1x401 array.

Maybe you mean componentwise multiplication:

HH=H.*H2;

Best wishes

Torsten.