数值计算方法 matlab实现Gauss消去法，Guass列主元消去法，Doolittle三角分解法代码及注释

//Run.cpp //测试程序 #include<math.h> #include<iostream> #include<iomanip> using namespace std; #include"IOput.cpp" #include"Gauss.cpp" #include"Gausspp.cpp" #include"Doolittle.cpp" int main() { int i; cout.setf(ios_base::fixed,ios_base::floatfield); loop: while(1) { cout<<" \\\\\\|///"<<endl; cout<<" \\\\ - - //"<<endl; cout<<" ( @-@ )"<<endl; cout<<"┏━━━━━━━oOOo-(_)-oOOo━━━━━━━┓"<<endl; cout<<"┃ 解线性方程组 ┃"<<endl; cout<<"┃*****************************************┃"<<endl; cout<<"┃ 1.Gauss消去法 ┃"<<endl; cout<<"┃ 2.Gauss列主元素消去法 ┃"<<endl; cout<<"┃ 3.Doolittle三角形分解法 ┃"<<endl; cout<<"┃ 0.退出程序 ┃"<<endl; cout<<"┃ Oooo ┃"<<endl; cout<<"┗━━━━━━━ oooO━-( )━━━━━━━┛"<<endl; cout<<" ( ) ) /"<<endl; cout<<" \\ ( (_/"<<endl; cout<<" \\_)"<<endl; cout<<"请输入你的选择(0-3):"; cin>>i; switch(i) { case 1: { Gauss G1; G1.InputData(); G1.XiaoYuan(); G1.QiuJie(); G1.Output(); } break; case 2: { Gausspp G2; G2.InputData(); G2.Swap(); G2.QiuJie(); G2.Output(); } break; case 3: { Doolittle D; D.InputData(); D.FenJie(); D.QiuJie(); D.Output(); } break; case 0: cout<<"退出系统!"<<endl; return 0; default: cout<<"输入错误，请重新输入!"<<endl; goto loop; } } }