cppdraft_translate/cppdraft/sf/cmath/beta.md

[sf.cmath.beta]

29 Numerics library [numerics]

29.7 Mathematical functions for floating-point types [c.math]

29.7.6 Mathematical special functions [sf.cmath]

29.7.6.4 Beta function [sf.cmath.beta]

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floating-point-type beta(floating-point-type x, floating-point-type y); float betaf(float x, float y); long double betal(long double x, long double y);

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Effects: These functions compute the beta function of their respective argumentsx and y.

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Returns: B(x,y), where B is given by Formula 29.24,x is x andy is y.

B(x,y)=Γ(x)Γ(y)Γ(x+y) , for x>0, y>0(29.24)