WBetax WBetaxc WIbeta WIbetac WIbetaci WIbetacia WIbetacib WIbetad WIbetai WIbetaia WIbetaib

WIbeta() Function WIbeta ( A As  Double, B As  Double, X As  Double  ) Normalized incomplete beta function Ix(a, b) Purpose This function computes the normalized incomplete beta function Ix(a, b) = (1/B(a, b))∫t^(a-1)*(1-t)^(b-1) dt [0, x] Returns Normalized incomplete beta function Ix(a, b). Parameters [in] A Argument a. (A >= 0, but A = B = 0 is not allowed) [in] B Argument b. (B >= 0, but A = B = 0 is not allowed) [in] X Argument x. (0 <= X <= 1) Reference boost/math/special_functions