# Step function question

1. Feb 28, 2009

### th3plan

consider f(t)=2u(t)-2u(t-2) Volts between t=0 and t=4 seconds. So i have to find the Fourier Series Representation of this given that T=4 secounds. I am not worried about the Fourier part. If i draw the f(t) function out on graph its 2 Volts from t=0 till t=2 seconds and then wehn it gets to 2 it goes down -2 volts back to Zero Volts , then when it gets to 4 seconds it goes up back to 2 volts correct ?

Is what i stated correct ?

2. Feb 28, 2009

### Redbelly98

Staff Emeritus
Yes.