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对不完全Gamma函数F_m(x)两种向后递推算法(级数展开和连分式逼近)进行了严格的误差分析.论证了这两种算法的稳定条件,给出了总体优化方案,并对数值实验结果进行了讨论.
The rigorous error analysis of two kinds of backward recursive algorithms (series expansion and continuous fractional approximation) of incomplete Gamma function F_m (x) is given. The stability conditions of the two algorithms are demonstrated and the overall optimization scheme is given. The numerical experiment results are discussed.