what is half factorial? (1/2)!=? via. Gamma function
18:01
Introduction to the Gamma function & the Pi function (extending the factorial!)
12:46
What is the factorial of -½?
26:31
How to Take the Factorial of Any Number
14:50
finally 0^0 approaches 0 (after 6 years!)
15:21
Half factorial using the gamma function
14:54
Why I don't teach LIATE (integration by parts trick)
5:03
The Secret Behind -1 Factorial
19:44