Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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#1 2012-10-25 00:22:42

Karrl
Guest

i !

How do I find i !,I know it is done by integral found in gamma function,but i cannot integrate it,please help.(additionally,I am a little bad in calculus)

#2 2012-10-25 01:35:29

zetafunc.
Guest

Re: i !

Finding that integral is pretty difficult. You need to find an approximation with Taylor series, and the answer is not particularly nice...

#3 2012-10-25 13:17:02

Karrl
Guest

Re: i !

Isn't there any way to intigrate?

#4 2012-10-25 15:23:15

bobbym
Administrator

Online

Re: i !

Hi;

The gamma function is defined as



If it could be integrated then that would be the definition of the gamma function, not the integral.


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.

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