Hey everyone. So we began looking at the fourier series in my class and well.. i guess i kind of understand it lol. I have to Calculate An and Bn (because it is non symmetrical) and plot this in MATLAB. However, in order to do all of that, i have to get the period and function to this sawtooth wave. I have a problem figuring out the period though.

Attachment 29460
Starting from 0, I say it is a period of 2 (T=2), but it looks as if its a period of 3 because the cycle starts again at 3. That has me a little confused.

I also have the function as:

Attachment 29461
I could really use some help figuring this out! Thanks in advance! :)