C Program FOR MATRIX MULTIPLICATION

C Program FOR MATRIX MULTIPLICATION

#include
main()
{
int a[20][20],b[20][20],c[20][20],r1,c1,c2,r2,i,j,k;
printf(“\tEnter the row and coloumn size For matrix1\n”);
scanf(“%d%d”,&r1,&c1);
printf(“\tEnter the row and coloumn size For  matrix2\n”);
scanf(“%d%d”,&r2,&c2);
if (c1!=r2)
{
printf(“\tOppssss...The Coloumn size of Matrix1 not equal to row size of Matrix2\n\tMultiplication impossible/n”);
}
else
{
printf(“\tEnter elemnts of matrix1\n”);
for(i=0;i<r1;i++)
{
for(j=0;j<c1;j++)
{
scanf(“%d”,&a[i][j]);
}
}
printf(“\tEnter elements of matrix2\n”);
for(i=0;i<r2;i++)
{
for(j=0;j<c2;j++)
{
scanf(“%d”,&b[i][j]);
}
}
for(i=0;i<r1;i++)
{
for(j=0;j<c2;j++)
{
c[i][j]=0;
for(k=0;k<c1;k++)
{
c[i][j]+=a[i][k]*b[k][j];
}
}
}
printf(“\tYes...!! Product Matrix…\n”);
for(i=0;i<r1;i++)
{
for(j=0;j<c2;j++)
{
printf(“\t%d\t”,c[i][j]);
}
printf(“\n”);
}
}
}

OUTPUT:



Enter the row and coloumn size of matrix1
3
3
Enter the row and coloumn size of matrix2
3
3
Enter elemnts of matrix1
1
2
3
4
5
6
7
8
9

Enter elemnts of matrix2
9
8
7
6
5
4
3
2
1

Product Matrix…

30 24 18

84 69 54

138 114 90

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