vb2008开发的完全类似Excel多项式曲线拟合工具(开源),用自带的Excel文件数据celiangzhi.xlsx测试拟合到300次无压力，而Excel最多拟合6次 带GDI+图像绘制功能及图像旋转功能及显示公式（方便插值)-Vb2008 development is similar to that of the Excel polynomial curve fitting tool (Kai Yuan), with the Excel file data fitting wit

背单词程序 数值微分包括用插值多项式求数值导数 用三次样条函数-Memorizing words program numerical differentiation include numerical derivative with interpolation polynomial Using cubic spline function