Matrix Operations using Template

Create Matrix class. Write a menu-driven program to perform following Matrix operations (2-D array implementation):
a) Sum
b) Difference
c) Product
d) Transpose
e) Use Templates



#include<iostream>

using namespace std;

const int r=5,c=5;

template<class T>
class matrix
{
T m[r][c];
public:
void get_value()
{
for(int i=0;i<r;i++)
{
for(int j=0;j<c;j++)
{
cout<<"\n M["<<i<<"]["<<j<<"] = ";
cin>>m[i][j];
}
}
}

void operator +(matrix ob)
{
T p[r][c];

for(int i=0;i<r;i++)
{
for(int j=0;j<c;j++)
{
p[i][j]=m[i][j]+ob.m[i][j];
cout<<" "<<p[i][j]<<" ";
}
cout<<"\n";
}
}

void operator -(matrix ob)
{
T p[r][c];

for(int i=0;i<r;i++)
{
for(int j=0;j<c;j++)
{
p[i][j]=m[i][j]-ob.m[i][j];
cout<<" "<<p[i][j]<<" ";
}
cout<<"\n";
}
}

void operator *(matrix ob)
{
T p[r][c];

for(int i=0;i<r;i++)
{
for(int j=0;j<c;j++)
{
p[i][j]=0;
for(int k=0;k<c;k++)
{
p[i][j]+=(m[i][k] * ob.m[k][j]);
}
}
}

for(int i=0;i<r;i++)
{
for(int j=0;j<c;j++)
{
cout<<" "<<p[i][j]<<" ";
}
cout<<"\n";
}
}



void transpose()
{
T p[r][c];

for(int i=0;i<r;i++)
{
for(int j=0;j<c;j++)
{
p[j][i]=m[i][j];
}for(int i=0;i<r;i++)
{
for(int j=0;j<c;j++)
{
cout<<" "<<p[i][j]<<" ";
}
cout<<"\n";
}
}



}

void display()
{
for(int i=0;i<r;i++)
{
for(int j=0;j<c;j++)
{
cout<<" "<<m[i][j]<<" ";
}
cout<<"\n";
}
cout<<"\n\n";
}
};

void main()
{
matrix<int> m1,m2;
int ch;

cout<<"\n Enter Elements of Matrix A\n";
m1.get_value();
cout<<"\n Enter Elements of Matrix B\n";
m2.get_value();

while(1)
{
system("cls");
cout<<"\n----------MATRIX OPERATIONS-----------\n\n";
cout<<"\n 1. Sum";
cout<<"\n 2. Difference";
cout<<"\n 3. Product";
cout<<"\n 4. Transpose";
cout<<"\n 5. Display";
cout<<"\n 0. EXIT\n";
cout<<"\n Enter your choice: ";
cin>>ch;

switch(ch)
{
case 1: cout<<"\n\n Matrices Sum \n\n";
m1 + m2;
break;
case 2: cout<<"\n\n Matrices Subtraction \n\n";
m1-m2;
break;
case 3: cout<<"\n\n Matrices Product \n\n";
m1*m2;
break;
case 4: cout<<"\n\n MATRIX A\n";
m1.display();
cout<<"\n\n Transposed Matrix\n";
m1.transpose();
cout<<"\n\n MATRIX B\n";
m2.display();
cout<<"\n\n Transposed Matrix\n";
m2.transpose();
break;
case 5: cout<<"\n\n MATRIX A\n";
m1.display();
cout<<"\n\n MATRIX B\n";
m2.display();
break;
case 0: exit(0);
default: cout<<"\n\n Invalid choice";
}
system("pause");
};
}