Hello everyone, I'm new to Mathematica and trying to solve an integral. Although I solve it by hand and using Matlab it gives me the correct answer, when I try to solve it using Mathematica it gives me the correct answer, but with a wrong condition.
More specifically,
Integrate[Exp[-x^2] x^(1 - a), {x, 0, Infinity}]
gives the following answer. The answer is right for every a and not for only if Re[a]<2.
1/2 Gamma[1 - a/2] if Re[a]<2
What should I do to avoid this issue?
Thanks in advance:)
