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.

Code\delphi\pudn\upandload\DATA\Delphi_150500\Delphi_150500\rd.txt
....\......\....\.........\....\.............\.............\最小二乘法七点曲线拟合（带图）\Project1.cfg
....\......\....\.........\....\.............\.............\..............................\Unit1.dcu
....\......\....\.........\....\.............\.............\..............................\Unit1.ddp
....\......\....\.........\....\.............\.............\..............................\Unit1.dfm
....\......\....\.........\....\.............\.............\..............................\Project1.dof
....\......\....\.........\....\.............\.............\..............................\Project1.dpr
....\......\....\.........\....\.............\.............\..............................\Unit1.pas
....\......\....\.........\....\.............\.............\..............................\Project1.res
....\......\....\.........\....\.............\.............\最小二乘法七点曲线拟合（带图）

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