Delphi:Delphi曲线图演示，最小二乘法七点曲线拟合演示效果，借此源码可了解系数矩阵、增广矩阵、高斯消元、误差计算、高斯消去后的矩阵右侧系数、迭代初值、迭代求解等相关技巧。

-Delphi: Delphi graph demonstrates, least squares curve fitting seven demonstration effect, whereby the source code can understand the coefficient matrix, augmented matrix, Gaussian elimination, error calculation, the right of the coefficient matrix Gaussian elimination after initial iteration, iterative solution and other related skills.