# Limits of a fourier integral

1. Dec 6, 2011

### Studious_stud

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

3. The attempt at a solution

When I do the integral of this function I'm unsure of what the limits are. Anyone care to help? Thanks

2. Dec 6, 2011

### micromass

Staff Emeritus

3. Dec 6, 2011

### Studious_stud

Sure thing, just forgot to include it.

I'd use latex but it's just quicker this way...

4. Dec 6, 2011

### micromass

Staff Emeritus
Well f(x)=0 for $x\leq 0$, so the part of the integral from $-\infty$ to 0 vanishes, right??

So that would leave us with?

5. Dec 6, 2011

### Studious_stud

Oh I get ya, so the lower limit is 0 and the upper limit is $-\infty$?

6. Dec 6, 2011

### micromass

Staff Emeritus
I guess you mean + for the upper limit, but yeah.

7. Dec 6, 2011

### Studious_stud

Sorry for the double post here, I mean the upper limit is $\infty$