2-D Matrix Multiplication with output

Write a C program to implement 2D Matrix Multiplication with output:

      Here a 3 x 3 matrix multiplication is given you can change the value of m and n for any m x n matrix . Given program can multiply any number of 2-D matrix.

Program:

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main()

{

int i,j,k,t,n=3,m=3,f,a1=3,b1=3,flag=1;

int a[3][3], b[3][50], c[3][50];

clrscr();

printf("enter A column wise:");

for(j=0;j<m;j++)

{

for(i=0;i<n;i++)

{

scanf("%d",&a[i][j]);

}

}

    do

    {

printf("enter B column wise:");

for(j=0;j<b1;j++)

{

for(i=0;i<a1;i++)

{

scanf("%d",&b[i][j]);

}

}

if(a1==m)

{

for(i=0;i<n;i++)

{

for(j=0;j<b1;j++)

{

c[i][j]=0;

for(k=0;k<a1;k++)

{

c[i][j]+=a[i][k]*b[k][j];

}

}

}

flag=0;

}

       else

{

printf("dimension mismatch::::::::");

}

if(t==0)

{

       printf("The transformed matrix is : \n");

}

for(i=0;i<n;i++)

{

for(j=0;j<b1;j++)

{

printf("%d\t",c[i][j]);

if(j==(b1-1))

             printf("\n");

}

}

if(t!=0)

        {

printf("do you want to multiply further?:\nenter\n 1 for yes\n0 for no ::: ");

scanf("%d",&f);

if(f==0)

{

flag=0;

}

else

{

flag=1;

for(i=0;i<a1;i++)

{

for(j=0;j<b1;j++)

{

a[i][j]=c[i][j];

}

}

printf("want to carry out other transformation?\nenter\n 1 for transformation\n0 for point ::: ");

scanf("%d",&f);

if(f==1)

    b1=3;

else

  {

printf("The transformation matrix is :\n");

for(i=0;i<n;i++)

{            

for(j=0;j<b1;j++)

{

          printf("%d\t",c[i][j]);

if(j==(b1-1))

printf("\n");

}

}

printf("enter no of points to be transformed:");

scanf("%d",&b1);

t=0;

}

      }

       }

      else

       flag=0;

   }while(flag==1);

getch();

}

OUTPUT: