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Название: Algorithm 708: Significant Digit Computation of the Incomplete Beta Function Ratios
Авторы: Didonato A., Morris A.H.
Аннотация:
An algorithm is given for evaluating the incomplete beta function ratio Ix(a, b) and its complement 1 - Ix(a> A new continued fraction and a new asymptotic series are used with classical results A transportable Fortran subroutine based on this algorithm is currently in use. It is accurate to 14 significant digits when precision is not restricted by inherent error.