matPlus.h

//加法
	Matrix operator+(Matrix matb){
		Matrix mata=*this;
		int rowa=mata.row(),rowb=matb.row(),cola=mata.col(),colb=matb.col();
		if( (rowa!=rowb)||(cola!=colb))
		{
			return NULL;
		}
		Matrix newMat(rowa,cola);
		int i,j;
		for(i=1;i<=rowa;++i)
			for(j=1;j<=cola;++j)
			{
				newMat(i,j)=mata(i,j)+matb(i,j);
			}
		return newMat;
	}
	Matrix operator+=(Matrix matb){
		Matrix mata=*this;
		int rowa=mata.row(),rowb=matb.row(),cola=mata.col(),colb=matb.col();
		if( (rowa!=rowb)||(cola!=colb))
		{
			return NULL;
		}
		int i,j;
		for(i=1;i<=rowa;++i)
			for(j=1;j<=cola;++j)
			{
				mata(i,j)+=matb(i,j);
			}
		return mata;
	}
	
	Matrix operator+(double C){
		Matrix mat=*this;
		int row=mat.row(),col=mat.col();
		Matrix newMat(row,col);
		int i,j;
		for(i=1;i<=row;++i)
			for(j=1;j<=col;++j)
			{
				newMat(i,j)=mat(i,j)+C;
			}
		return newMat;
	}
	Matrix operator+=(double C){
		Matrix mat=*this;
		int row=mat.row(),col=mat.col();
		int i,j;
		for(i=1;i<=row;++i)
			for(j=1;j<=col;++j)
			{
				mat(i,j)+=C;
			}
		return mat;
	}