Difference between revisions of "Lower incomplete gamma"

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(Created page with "The lower incomplete gamma function is defined for $\mathrm{Re}(a)>0$ by $$\gamma(a,x)=\displaystyle\int_0^x e^{-t}t^{a-1}dt.$$ A single-valued analytic function of $a$ and $x...")
 
 
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File:Lowerincompletegamma(abramowitzandstegun).jpg|The $\gamma^*$ function.
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File:Lowerincompletegamma(abramowitzandstegun).jpg|The $\gamma^*$ function from Abramowitz&Stegun.
 
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[[Category:SpecialFunction]]

Latest revision as of 18:32, 24 May 2016

The lower incomplete gamma function is defined for $\mathrm{Re}(a)>0$ by $$\gamma(a,x)=\displaystyle\int_0^x e^{-t}t^{a-1}dt.$$ A single-valued analytic function of $a$ and $x$ can be defined as $$\gamma^*(a,x)=\dfrac{x^{-a}}{\Gamma(a)} \gamma(a,x).$$