Friday, July 15, 2011

Source Code for Performing Matrix Multipliaction in C

The program below demostrates how to multiply any two matrices in c.Before multiplication the order of the matrix is checked to ensure multiplication is possible.

 #include<stdio.h>  
 #include<conio.h>  
 void main()  
 {  
  int A[50][50],B[50][50],C[50][50];  
  int i,j,p,r1,r2,c1,c2;  
  clrscr();  
  printf("\nMATRIX MULTIPLICATION");  
  printf("\nEnter The order Of First Matrix:");  
  scanf("%d%d",&r1,&c1);  
  printf("\nEnter The Elements Of First Matrix:");  
  for(i=0;i<r1;i++)  
   for(j=0;j<c1;j++)  
     scanf("%d",&A[i][j]);  
  printf("\n\nEnter The order Of Second Matrix:");  
  scanf("%d%d",&r2,&c2);  
  printf("\nEnter The Elements Of Second Matrix:");  
  for(i=0;i<r2;i++)  
   for(j=0;j<c2;j++)  
     scanf("%d",&B[i][j]);  
  if(c1!=r2)  
  {  
   printf("\n\nThe Matrix Cant Be Multipied!!!");  
   getch();  
   exit(0);  
  }  
  for(i=0;i<r1;i++)  
   for(j=0;j<c2;j++)  
   {  
    C[i][j]=0;  
    for(p=0;p<c1;p++)  
     C[i][j]+=A[i][p]*B[p][j];  
   }  
   printf("\n\nThe Product Of Matrices Is:");  
  for(i=0;i<r1;i++)  
  { printf("\n");  
    for(j=0;j<c2;j++)  
     printf("%d ",C[i][j]);  
  }  
  getch();  
 }   
}

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