28 Numerics library [numerics]

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

28.7.6 Mathematical special functions [sf.cmath]

28.7.6.4 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);
1
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Effects: These functions compute the beta function of their respective arguments x and y.
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Returns:
where x is x and y is y.