# I'm confused by what the professor means on this Fourier Series proble

1. Mar 7, 2013

### Jamin2112

1. The problem statement, all variables and given/known data

2. Relevant equations

So I know that fft(x) for a bunch of sample points x={x1, x2, ..., xn} returns the n Fourier coefficients for a function fitted through those sample points.

3. The attempt at a solution

So I'm a little confused about what the 1/31 and the c mean in the context of this problem. What I'm trying to do, ultimately, is use the Fast Fourier Transform algorithm on 31 equally spaced sample points on the domain [1, 4] to reconstruct the function on 3001 equally spaced sample points on the same domain.

Thoughts?

2. Mar 11, 2013

### Staff: Mentor

How is the Fourier transform normalized? And can you see any link between what I put in bold there?

3. Mar 11, 2013

### Jamin2112

Now I've figured out that problem, but I'm confused on a different problem where I have to use the MATLAB function odeset to change absolute and relative tolerance. Do you know how to do that?