main.cpp

用doolittle分解法（非选主元）解用户输入的线性方程组。若无法解

#include "function.cpp"	
#include "doolittle.cpp"
#include <iostream.h>
int main()
{   
	double **A,*B;
    int n;
	cout<<"请输入系数矩阵阶数"<<endl;
	cin>>n;
	cout<<"请输入系数矩阵各元素"<<endl;
	A=create(n);
	cout<<"请输入方程右边向量各元素"<<endl;
	B=createB(n);
	output1(A,n);
	cout<<"正在使用doolittle分解法解方程......"<<endl;
	if(doolittle1(A,n)==0)
		cout<<"无法继续，请试用选主元的doolittle法"<<endl ;
	else
	{
		doolittle2(A,B,n);
		output2(B,n);
	}
    destroyB(B);
	destroy(A,n);
	return 0;
}