What's wrong with the folow expression?

Matlab don't accept y=exp(-x)+exp(-0.5*x)*(-0.5*cos(3*x)-3*sin(3*x))

Error using * Inner matrix dimensions must agree.

what's wrong with this?

Answer 1

[Azzi Abdelmalek]

Use .*

x=0:10
y=exp(-x)+exp(-0.5*x).*(-0.5*cos(3*x)-3*sin(3*x))

[Mariana]

thank you