求圆周率的C#原代码 在数值计算中，一般的牛顿迭代法得到的数值具有截断误差，因此，用C#编写的可是实现任意精度的圆周率的计算程序-seeking ratio of the circumference C# source in numerical calculation, the general Newton iterative numerical method with the truncation error and therefore C# prepared But to achieve

在数值计算中，一般的牛顿迭代法得到的数值具有截断误差，因此，用VB编写的可是实现任意精度的圆周率的计算程序-in numerical calculation, the general Newton iterative numerical method with the truncation error, therefore, prepared by the VB But to achieve any degree of accuracy the circumference of the rate

用基于内点法的截断牛顿法来求出lasso问题(The truncated Newton method based on interior point method is used to solve the lasso problem)