#include<iostream.h>
#include<conio.h>
#include<process.h>
class mat
{
int a[20][20],b[20][20],c[20];
int i,j,k,p,q,x,y;
public:
void addition(void);
void substraction(void);
void multiplication(void);
};

void mat::addition()
{
cout<<"\nENTER THE DIMENSION OF MATRIX A::\t";
cin>>x>>y;
cout<<"\nENTER THE DIMENSION OF MATRIX b::\t";
cin>>p>>q;
#include<iostream.h>
#include<conio.h>
class mat
{
      int a[30][30] , b[30][30], c[30][30];
      int i, j,k ,l, m,n;
      public:
             void add(void);
             void sub(void);
             void mul(void);
             void div(void);
             };
 void mat:: add()
 {
      cout<<"enter matrix size a:\n";
      cin>>k>>l;
      cout<<"Enter matrix size b:\n"; 
      cin>>m>>n;
      if((k==m)&&(l==n))
{
cout<<"\nENTER THE "<<k<<"*"<<l<<" ELEMENTS OF MATRIX A::\n";
for(i=0;i<k;i++)
{
for(j=0;j<l;j++)
cin>>a[i][j];
}
cout<<"\nENTER THE "<<m<<"*"<<n<<" ELEMENTS OF MATRIX B::\n";
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
cin>>b[i][j];
}
cout<<"\nSUM OF MATRIX A & B::\n";
for(i=0;i<k;i++)
{
for(j=0;j<l;j++)
c[i][j]=a[i][j]+b[i][j];
}
for(i=0;i<k;i++)
{
for(j=0;j<l;j++)
cout<<c[i][j]<<"\t";
cout<<"\n";
}
}
else
cout<<"\nADDITION IS NOT POSSIBLE::";
}
void mat::sub()
{
cout<<"\nENTER THE DIMENSION OF MATRIX A::\t";
cin>>k>>l;
cout<<"\nENTER THE DIMENSION OF MATRIX b::\t";
cin>>m>>n;
if((k==m)&&(l==n))
{
cout<<"\nENTER THE "<<k<<"*"<<l<<" ELEMENTS OF MATRIX A::\n";
for(i=0;i<k;i++)
{
for(j=0;j<l;j++)
cin>>a[i][j];
}
cout<<"\nENTER THE "<<m<<"*"<<n<<" ELEMENTS OF MATRIX B::\n";
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
cin>>b[i][j];
}
cout<<"\nDIFFERENCE OF THE MATRIX A & B::\n";
for(i=0;i<k;i++)
{
for(j=0;j<l;j++)
c[i][j]=a[i][j]-b[i][j];
}
for(i=0;i<k;i++)
{
for(j=0;j<l;j++)
cout<<c[i][j]<<"\t";
cout<<"\n";
}
}
else
cout<<"\nSUBSTRACTION IS NOT POSSIBLE::";
}
void mat::mul()
{
cout<<"\nENTER THE DIMENSION OF MATRIX A::\t";
cin>>k>>l;
cout<<"\nENTER THE DIMENSION OF MATRIX b::\t";
cin>>m>>n;
if((k==m)&&(l==n))
{
cout<<"\nENTER THE " <<k<<"*"<<l<<" ELEMENTS OF MATRIX A::\n";
for(i=0;i<k;i++)
{
for(j=0;j<l;j++)
cin>>a[i][j];
}
cout<<"\nENTER THE " <<m<<"*"<<n<< " ELEMENTS OF MATRIX B::\n";
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
cin>>b[i][j];
}
cout<<"\nPROCUCT OF THE MATRIX A & B::\n";
for(i=0;i<k;i++)
{
for(j=0;j<l;j++)
{
c[i][j]=0;
for(k=0;k<l;k++)
c[i][j]=a[i][k]*b[k][i]+c[i][j];
}
}
for(i=0;i<k;i++)
{
for(j=0;j<n;j++)
cout<<c[i][j]<<"\t";
cout<<"\n";
}
}
else
cout<<"\nMULTIPLICATION IS NOT POSSIBLE::";
}
void mat::div()
     {
cout<<"\nENTER THE DIMENSION OF MATRIX A::\t";
cin>>k>>l;
cout<<"\nENTER THE DIMENSION OF MATRIX b::\t";
cin>>m>>n;
if((k==m)&&(l==n))
{
cout<<"\nENTER THE " <<k<<"*"<<l<<" ELEMENTS OF MATRIX A::\n";
for(i=0;i<k;i++)
{
for(j=0;j<l;j++)
cin>>a[i][j];
}
cout<<"\nENTER THE " <<m<<"*"<<n<< " ELEMENTS OF MATRIX B::\n";
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
cin>>b[i][j];
}
cout<<"\nPROCUCT OF THE MATRIX A & B::\n";
for(i=0;i<k;i++)
{
for(j=0;j<l;j++)
{
c[i][j]=0;
for(k=0;k<l;k++)
c[i][j]=a[i][j]/b[i][j];
}
}
for(i=0;i<k;i++)
{
for(j=0;j<n;j++)
cout<<c[i][j]<<"\t";
cout<<"\n";
}
}
else
cout<<"\nMULTIPLICATION IS NOT POSSIBLE::";
}
     
int main()
{
int c;
char ch;
mat M;
cout<<"\n\t\tMATRIX OPERATION BY Pradeep Kumar\n\n";
cout<<"\n1.ADDITION\n2.SUBSTRACTION\n3.MULTIPLICATION\n4.DIVISION";
cout<<"\nENTER YOUR CHOICE ::\t";
cin>>c;
switch(c)
{
case 1:M.add();
break;
case 2:M.sub();
break;
case 3:M.mul();
case 4:M.div();
break; 
}
cout<<"Thanks for Using htp://highfile.ucoz.com\n ";
getch();

}