Mega Code Archive
Program to multiply two 3x3 matrices
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#include<stdio.h>
#include<conio.h>
/*Program to multiply two 3*3 matrices*/
void main()
{
int a[3][3],b[3][3],c[3][3],i,j,k;
clrscr();
printf("Enter elements of A:
");
for(i=0;i<=2;i++)
for(j=0;j<=2;j++)
scanf("%d",&a[i][j]);
printf("
Enter elements of B:
");
for(i=0;i<=2;i++)
for(j=0;j<=2;j++)
scanf("%d",&b[i][j]);
printf("
A:
");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
printf("%d ",a[i][j]);
printf("
"); //To change line.
}
printf("
B:
");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
printf("%d ",b[i][j]);
printf("
");
}
k=0;
while(k<=2)
{
for(i=0;i<=2;i++)
{
int sum=0;
for(j=0;j<=2;j++)
sum=sum+a[i][j]*b[j][k];
c[i][k]=sum;
}
k++;
}
printf("
Result:
");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
printf("%d ",c[i][j]);
printf("
");
}
getch();
}
]]>