Gamma Function & Factorials of non-integers

No.10396727 ViewReplyOriginalReport
How the fuck are these calculated??? Surely there is some formula that will give you the result, but I can't find it after a long time of searching that makes anything easier (on the level of 4! being 4*3*2*1 level of easy), and my discipline does not allow me to take any more pure math courses (advanced mathematics which we colloquially called 'calculus IV' was the last one). I just want to know how you do some shit like 2.6! or ?(3.6) or whatever the fuck, man. Can you help me?