DT三角化实现，注意该工程接口在设计上期望使用者直接调用exe，而不是dll。否则需要自行修改源码-DT triangulation achieved, attention to the interface works in the design expectations of the users directly call exe, instead dll. Otherwise, the need to amend its own source

将最小二乘法拟合程序做成动态链接库DLL文件，然后从VC界面调用该DLL文件。在实际项目应用中，这种方法很实用。-Least squares fitting procedure to create a dynamic link library DLL files, and then call the VC interface DLL file. In the actual project applications, this method is very practical.

调用mathlib52.dll中的自定义API写的任意阶矩阵计算器，目前支持实矩阵相乘，求逆阵，求行列式的值3个功能，用户界面较友好，具有一定的容错能力。-Call mathlib52.dll custom API to write in any order matrix calculator now supports real matrices, inverse matrix, determinant of the value of the three demand functions, th