# Can a fourier series of a function just be a constant?

1. Oct 23, 2005

### schattenjaeger

say if you get a result for a0 but 0 for an and bn(using my book's notation where the fourier series is a0+an*cos(nx)+bn*sin(nx)

2. Oct 24, 2005

### Galileo

Ofcourse. It happens when the original function is constant.