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最小二乘法的多个曲线拟合算法源码 下边只列出一次的： BOOL CalculateLineKB(CFoldPointList *m_FoldList,double &k,double &b) { //最小二乘法直线拟合 //m_FoldList为关键点(x,y)的链表 //拟合直线方程(Y=kX+b) if(m_FoldList==NULL)return FALSE; long lCount=m_FoldList->GetCount(); if(lCountGetHeadPosition(); while(pos != NULL) { pFold=m_FoldList->GetNext(pos); mX+=pFold->X; mY+=pFold->Y; mXX+=pFold->X*pFold->X; mXY+=pFold->X*pFold->Y; } if(mX*mX-mXX*n==0)return FALSE; k=(mY*mX-mXY*n)/(mX*mX-mXX*n); b=(mY-mX*k)/n; return TRUE; }