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#include<fstream>
#include<Windows.h>
#include<cstdlib>
#include<iostream>
#include<string>
#include<iomanip>
#include<sstream>
using namespace std;
void add_matrix(int row1,int row2,int col1,int col2,double m1[30][30],double m2[30][30],double m3[30][30]);
void GetMatrix(double m1[30][30], double m2[30][30],
ifstream &infile, int option, double m3[30][30],
int &row1, int &row2,int &col1,int &col2);
void displaymenu(int &option)
{
cout<<"\n\nWelcome to Matrix Operation"<<endl;
cout<<"*****************************************\n\n";
cout<< "Please select option: \n\n";
cout<< "\t(1) Add two matrices \n";
cout<< "\t(2) Multiply two matrices\n";
cout<< "\t(3) Hadamard product of two matrices\n";
cout<< "\t(4) Kronecker product of two matrices \n";
cout<< "\t(5) Display a matrix \n\n";
cout<< "\t(99) Exit"<<endl;
cout<<"Please select your menu : ";
cin>>option;
}
int main( void )
{
int option=0;
char quit='n';
// int choice;
double m1[30][30], m2[30][30], m3[30][30] ;
ifstream infile;
string inputfilename,outputfilename;
int row1=0, row2=0, col1=0, col2=0;
do{
error:
system("cls");
system("color 5B");
//display menu
displaymenu(option);
switch(option)
{
case 1:
case 2:
case 3:
case 4:GetMatrix(m1,m2,infile,option,m3, row1, row2,col1,col2);
default :
{
fflush(stdin);
system("cls");
printf("I'm sorry,but you have enter an inavalid selection.Please try again\n\n");
system("pause");
system("cls");
goto error;
}
}
}while(quit=='n'||quit=='N');
return 0;
}
]void GetMatrix(double m1[30][30], double m2[30][30],
ifstream &infile, int option, double m3[30][30],
int &row1, int &row2,int &col1,int &col2)
{
string inputfilename,outputfilename;
system("cls");
cout<<"\n\nPlease enter ONE (1) input filename : ";
cout<<endl;
cin>>inputfilename ;
infile.open(inputfilename,ios::in);
if(infile.fail())
{
cout<<"File could not be open !! Press any Key...";
cin.ignore();
cin.get();
exit(-1);
}
else
{
string line;// problem here
int row1, row2, col1, col2;
infile.ignore('/n');
getline(infile,line);//get the file header
infile>>row1 >>col1;
cout<<"This is "<< row1<<" x "<< col1 <<" matrix."<<endl;
for(int i=0 ; i<row1 ; i++)
{
for(int j=0 ; j<col1 ; j++)
{
infile >> m1[i][j];
cout<<m1[i][j]<<"\t";
}
cout<<endl<<endl;
}
cout<<line;
string line2;
infile>>line;
/*do
{
getline(infile,line);
}
while(line!= "</mat>");*/
cout<<line;
infile>>line2;
cout<<line2;
getline(infile,line2);
cout<<line2;
getline(infile,line2);
cout<<line2;
infile>>row2 >>col2;
cout<<"This is "<< row2<<" x "<< col2 <<"matrix"<<endl;
for(int i=0 ; i<row2 ; i++)
{
for(int j=0 ; j<col2 ; j++)
{
infile >> m2[i][j];
cout<<m2[i][j]<<"\t";
}
cout<<endl<<endl;
}
system("pause");
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