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

You are not logged in.

- Topics: Active | Unanswered

**Karrl****Guest**

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)

**zetafunc.****Guest**

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

**Karrl****Guest**

Isn't there any way to intigrate?

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,385

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 agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

Offline