高级界面特效制作，三角按钮制作，按钮方向有三个方向可选，且可按钮名称可改-Production of high-level interface effects, triangle button making, button optional direction in three directions, and can change the button names can be

该程序实现了三角形面积、外接圆、内接圆的转换计算，已知三边或三个角度中的任何三个，方可计算出其他的凉-The program area of ​ ​ a triangle, circumcircle, the inscribed circle of the conversion calculation, known to any of the three trilateral or three angles before calculation of other cool

用DELPHI 编写的实现三角形 以及可以推广到多边形窗体 自己参考源码 进行修改(Written in DELPHI the implementation of the triangle And can be applied to polygonal form their reference source code changes)

在实现了系数矩阵的三角分解后,为了避免“小主元”做除数而导致更大的误差(In the realization of the coefficient matrix of the triangle decomposition, in order to avoid the "principal" do divisor and cause greater error)