复化三点Gauss-lengend公式求pi，可以动态调节运行环境的参数，计算时间和二维直方图。- Complex of three-point Gauss-lengend the Formula pi, Can dynamically adjust the parameters of the operating environment, Computing time and two-dimensional histogram.

直接FFD（DFFD）几何参数化方法，可以对二维翼型实现参数化，实现网格变形(DFFD parameterization technique, used to deform the 2D airfoil)