C++曲线拟合源代码

一个基于C++的多项式曲线拟合源代码，运用最小二乘法，供大家参考。

#include 
#include 
#include 
#include 

using namespace std;

//最小二乘拟合相关函数定义
//double sum（vector Vnum int n）;
//double MutilSum（vector Vx vector Vy int n）;
double RelatePow（vector Vx int n int ex）;
double RelateMutiXY（vector Vx vector Vy int n int ex）;
void EMatrix（vector Vx vector Vy int n int ex double coefficient[]）;
void CalEquation（int exp double coefficient[]）;
double F（double c[] int l int m）;
double Em[6][4];



//主函数，这里将数据拟合成二次曲线
int main（int argc char* argv[]）
{
	/*int a;
	vector arry1（a） arry2（a）;*/
	
	double arry1[5] = { 00.25050.75 };
	double arry2[5] = { 11.2831.6492.2122.178 };
	double coefficient[5] ;
	memset（coefficient 0 sizeof（coefficient））

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

    ..A..H.     27648  2019-02-13 14:10  Functionfitting\.vs\Functionfitting\v14\.suo

     文件       3113  2019-02-13 14:10  Functionfitting\Functionfitting\functionfitting.cpp

     文件       7264  2018-12-04 14:28  Functionfitting\Functionfitting\Functionfitting.vcxproj

     文件        956  2018-12-04 14:28  Functionfitting\Functionfitting\Functionfitting.vcxproj.filters

     文件        195  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\Functionfitting.log

     文件     294170  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\functionfitting.obj

     文件        620  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\Functionfitting.tlog\CL.command.1.tlog

     文件      10048  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\Functionfitting.tlog\CL.read.1.tlog

     文件        472  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\Functionfitting.tlog\CL.write.1.tlog

     文件        183  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\Functionfitting.tlog\Functionfitting.lastbuildstate

     文件       1158  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\Functionfitting.tlog\link.command.1.tlog

     文件       2602  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\Functionfitting.tlog\link.read.1.tlog

     文件        436  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\Functionfitting.tlog\link.write.1.tlog

     文件     347136  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\vc140.idb

     文件     430080  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\vc140.pdb

     文件       1327  2018-12-04 14:26  Functionfitting\Functionfitting.sln

     文件     110592  2019-02-13 10:19  Functionfitting\x64\Debug\Functionfitting.exe

     文件    1813900  2019-02-13 10:19  Functionfitting\x64\Debug\Functionfitting.ilk

     文件    1675264  2019-02-13 10:19  Functionfitting\x64\Debug\Functionfitting.pdb

     目录          0  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug\Functionfitting.tlog

     目录          0  2018-12-04 14:26  Functionfitting\.vs\Functionfitting\v14

     目录          0  2019-02-13 10:19  Functionfitting\Functionfitting\x64\Debug

     目录          0  2018-12-04 14:26  Functionfitting\.vs\Functionfitting

     目录          0  2018-12-04 14:28  Functionfitting\Functionfitting\x64

     目录          0  2018-12-05 14:26  Functionfitting\x64\Debug

    ...D.H.         0  2018-12-04 14:26  Functionfitting\.vs

     目录          0  2019-02-13 14:10  Functionfitting\Functionfitting

     目录          0  2018-12-04 14:28  Functionfitting\x64

     目录          0  2019-02-13 14:10  Functionfitting

     文件    8593408  2019-02-13 14:10  Functionfitting\Functionfitting.VC.db

............此处省略3个文件信息