在变步长求积过程中的三个加速公式，将粗糙的积分近似值迅速加工成精度较高的积分近似值的求积方法为龙为个求积算法。-Variable step size in order to plot the course of the three accelerated formula rough approximation of the points quickly processed into a high precision quadrature integral approximation method for the months-long quadrature algorithm.