1. ## Integral Help

I need help with this integral:
Limits from 0 to infinity
X^(3/2) * exp(-X)

Hope someone understands this and can help me

2. The antiderivative associated with this integral is not trivial, you end up with the Erf function in there

If you are just looking for an answer, Mathematica's Integral calculator (they have one online too) gives me $\frac{3}{4}\sqrt{\pi}$

3. Originally Posted by BearN
I need help with this integral:
Limits from 0 to infinity
X^(3/2) * exp(-X)

Hope someone understands this and can help me
Read this: Gamma function - Wikipedia, the free encyclopedia