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 January 22nd, 2012, 11:11 AM #1 Member   Joined: Sep 2010 Posts: 39 Thanks: 0 gamma function For the integral of e^(x^4). Wolfram says the answer is the incomplete gamma function, (-(x ?(1/4, -x^4))/(4 (-x^4)^(1/4))) What is the incomplete gamma mean? The question involved is finding volume by revolving the solid bounded by, y=e^(-x^2), y=0, x=-1, x=1. Round the x axis. thanks
January 22nd, 2012, 04:15 PM   #2
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Re: gamma function

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 Originally Posted by kfarnan For the integral of e^(x^4). Wolfram says the answer is the incomplete gamma function, (-(x ?(1/4, -x^4))/(4 (-x^4)^(1/4))) What is the incomplete gamma mean? The question involved is finding volume by revolving the solid bounded by, y=e^(-x^2), y=0, x=-1, x=1. Round the x axis. thanks
http://en.wikipedia.org/wiki/Incomplete_gamma_function

 January 23rd, 2012, 08:55 AM #3 Senior Member   Joined: Dec 2011 From: Argentina Posts: 216 Thanks: 0 Re: gamma function If you're squaring the function then you shouldn't get $e^(x^4)$ but $e^(-2x^2)$

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