Matrix Operations in C Language

Matrix Operations in C Code

#include  
 #include  
 template  
 class matrix  
 {  
   public:  
   T mat[10][10];  
   int i;  
   matrix()  
   {  
     cout<<"\n\tMATRIX IS:";  
     for(i=0;i<m;i++) <br="">       for(j=0;j<n;j++) <br="">         mat[i][j]=0;  
   }  
   matrix(int m,int n)  
   {  
     cout<<"\n\tMATRIX IS:";  
     for(int i=0;i<m;i++) <br="">       for(int j=0;j<n;j++) <br="">         cin>>mat[i][j];  
   }  
   void display(int m,int n)  
   {  
     for(int i=0;i<m;i++) <br="">     {  
       cout<<"\n";  
       for(int j=0;j<n;j++) <br="">       {  
         cout<<"\t";  
         cout<<mat[i][j]; <br="">       }  
     }  
     getch();  
   }  
 };  
 template  
 void add(T1 mat1,T2 mat2,int r,int c)  
 {  
    int i,j;  
    float mat[20][20];  
    for(i=0;i<r;i++) <br="">    {  
     for(j=0;j<c;j++) <br="">     {  
       mat[i][j]=mat1[i][j]+mat2[i][j];  
     }  
    }  
    disp_res(mat,r,c);  
    getch();  
 }  
 template  
 void disp_res(T mat,int m,int n)  
 {  
     for(int i=0;i<m;i++) <br="">     {  
       cout<<"\n";  
       for(int j=0;j<n;j++) <br="">       {  
         cout<<"\t";  
         cout<<mat[i][j]; <br="">       }  
     }  
     getch();  
 }  
 template  
 void sub(T1 mat1,T2 mat2,int r,int c)  
 {  
    int i,j;  
    float mat[20][20];  
    for(i=0;i<r;i++) <br="">    {  
     for(j=0;j<c;j++) <br="">     {  
       mat[i][j]=mat1[i][j]-mat2[i][j];  
     }  
    }  
    disp_res(mat,r,c);  
    getch();  
 }  
 template  
 void mul(T1 mat1,T2 mat2,int r,int c,int a)  
 {  
   int i,j,k;  
   float mat[10][10];  
   for(i=0;i<r;i++) <br="">   {  
     for(j=0;j<a;j++) <br="">     {  
       mat[i][j]=0;  
       for(k=0;k<c;k++) <br="">       mat[i][j]+=mat1[i][k]*mat2[k][j];  
     }  
   }  
   disp_res(mat,r,a);  
   getch();  
 }  
 template  
 void trans(T mat,int m,int n)  
 {  
     int i,j;  
     T t;  
     if(m>=n)  
     {  
       for(i=0;i<m;i++) <br="">       {  
         for(j=0;j<i;j++) <br="">         {  
           t[i][j]=mat[i][j];  
           mat[i][j]=mat[j][i];  
           mat[j][i]=t[i][j];  
         }  
       }  
       disp_res(mat,n,m);  
     }  
     else  
     {  
       for(i=0;i<n;i++) <br="">       {  
         for(j=0;j<i;j++) <br="">         {  
           t[i][j]=mat[i][j];  
           mat[i][j]=mat[j][i];  
           mat[j][i]=t[i][j];  
         }  
       }  
       disp_res(mat,m,n);  
     }  
     getch();  
 }  
 void main()  
 {  
   int ch,r,c,ch1;  
   matrixt3();  
   do  
   {  
     clrscr();  
     cout<<"\n\t##### MATRIX OPERATIONS ######"  
       <<"\n\t1.INPUT"  
       <<"\n\t2.DISPLAY"  
       <<"\n\t3.ADDITION"  
       <<"\n\t4.SUBTRACTION"  
       <<"\n\t5.MULTIPLICATION"  
       <<"\n\t6.TRANSPOSE"  
       <<"\n\t7.EXIT";  
     cout<<"\n\tENTER UR CHOICE:";  
     cin>>ch;  
     switch(ch)  
     {  
       case 1:  
         cout<<"\n\tENTER NO. OF ROWS:";  
         cin>>r;  
         cout<<"\n\tENTER NO. OF COLUMNS:";  
         cin>>c;  
         matrixt1(r,c);  
         matrixt2(r,c);  
         break;  
       case 2: do  
         {  
           cout<<"\n\t#### DISPLAY MENU ####";  
           cout<<"\n\t1.1st MATRIX";  
           cout<<"\n\t2.2nd MATRIX";  
           cout<<"\n\t3.EXIT";  
           cout<<"\n\tENTER UR CHOICE:";  
           cin>>ch1;  
           clrscr();  
           switch(ch1)  
           {  
             case 1: cout<<"\n\t1st MATRIX";  
               t1.display(r,c);  
               break;  
             case 2: cout<<"\n\t2nd MATRIX";  
               t2.display(r,c);  
               break;  
             case 3: break;  
           }  
         }while(ch1!=3);  
         break;  
       case 3: cout<<"\n\tADDITION IS:";  
         add(t1.mat,t2.mat, r,c);  
         break;  
       case 4: cout<<"\n\tSUBTRACTION IS:";  
         sub(t1.mat,t2.mat, r,c);  
         break;  
       case 5: cout<<"\n\tMULTIPLICATION IS:";  
         mul(t1.mat,t2.mat, r,c,r);  
         break;  
       case 6: do  
         {  
           cout<<"\n\t#### TRANSPOSE MENU ####";  
           cout<<"\n\t1.1st MATRIX";  
           cout<<"\n\t2.2nd MATRIX";  
           cout<<"\n\t3.EXIT";  
           cout<<"\n\tENTER UR CHOICE:";  
           cin>>ch1;  
           clrscr();  
           switch(ch1)  
           {  
             case 1: cout<<"\n\tTRANSPOSE OF 1st MATRIX:";  
               trans(t1.mat,r,c);  
               trans(t1.mat,r,c);  
               break;  
             case 2: cout<<"\n\tTRANSPOSE OF 2nd MATRIX:";  
               trans(t2.mat,r,c);  
               trans(t2.mat,r,c);  
               break;  
             case 3: break;  
           }  
         }while(ch1!=3);  
         break;  
       case 7:  
         break;  
     }  
   }while(ch!=7);  
 }