程式提供最小二乘法的計算結果變成函式 畫成圖形-Least squares program provides the calculation results into paint graphics function

R 语言中的热图（Heatmap）绘画程序，内附具体例子。-R language heatmap (Heatmap) paint program, containing specific examples.

VC++ 二维迭代函数系统分形，IFS绘图的一个测试程序，可选择绘制图形的颜色、绘制命令和设置程序-C++ dimensional fractal IFS, IFS drawing of a test program, choose paint color graphics, drawing commands and setup program