说明：  用逼近法计算伽玛函数的值 用Lanczos算法计算伽玛函数的自然对数值 用伽玛函数计算贝塔函数的值 用逼近法计算不完全伽玛函数的值 用逼近法计算不完全贝塔函数的值 用逼近法计算伽玛函数的值 用逼近法计算第二类整数阶贝塞尔函数值 用逼近法计算变型的第一类整数阶贝塞尔函数值 用逼近法计算变型的第二类整数阶贝塞尔函数值 用高斯积分计算误差函数值 用高斯积分计算正弦积分值 用高斯积分计算余弦积分值 用高斯积分计算指数积分值 用逼近法计算指数积分值 用高斯积分计算第一类椭圆积分值 用高斯积分计算第二类椭圆积分值
(The computation of the gamma function with the approximation valueThe computation of the gamma function using the Lanczos algorithm for numerical natureCalculation of beta function with the gamma function valueUsing the approximation method to calculate the incomplete gamma function valueUsing the approximation method to calculate the incomplete Beta function valueThe computation of the gamma function with the approximation valueUsing the approximation method to calculate the second class of integer order Bessel functionsThe first class of integer order Bessel function to calculate the variant of the approximation valueCalculation of second types of integer order Bessel function variant value using the approximation methodThe calculation error function value by the Gauss integralSine integral value calculated by Gauss integralIntegral cosine value calculated by Gauss integralTo calculate the exponential integral value by the Gauss integralCalculation of exponential integral value using)