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Gamma function
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Gamma Function Abstract
The gamma function is an extension of the factorial function, with its argument shifted down by 1, to real and complex numbers. That is, if n is a positive integer, then Γ (n) = (n-1)! This functions as a basis to find a curve that connects the points (x, y) given by y = (x-1)! at the positive integer values for x. But this function is not restricted to whole numbers. A formula that allows the finding of the value of the Gamma function for any real value of n is as follows:
Γ (n+1) = ⌠∞
⌡0 e-x xn dx.