Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #1 20131217 09:06:21
FactorialsMy question is how do you find the factorial of any number? I already know how to find it with counting numbers, but how about negative numbers, or decimals?(I know 0.5!=√π, but it doesn't help with (7/9)!) #2 20131217 09:10:37
Re: FactorialsWe can use the gamma function to extend the definition of the factorial function to real and complex arguments. #3 20131217 09:12:06
Re: FactorialsHi calculator and numerically integrate. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #5 20131217 11:35:47
Re: FactorialsHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #6 20131219 01:13:38
Re: Factorials
Have you studied any calculus? 