Interview Questions   Tutorials   Discussions   Programs

# C - Find the program of matrix multiplication using arrays?

342
views
asked marvit August 18, 2014 09:26 AM

Find the program of matrix multiplication using arrays?

``````/* matrix multiplication using arrays */
#include <stdio.h>
void main()
{
int a[10][10], b[10][10], mult[10][10], r1, c1, r2, c2, i, j, k;
printf("Enter rows and column for first matrix: ");
scanf("%d%d", &r1, &c1);
printf("Enter rows and column for second matrix: ");
scanf("%d%d",&r2, &c2);
printf("\nEnter elements of matrix 1:\n");
for(i=0; i<r1; ++i)
{
for(j=0; j<c1; ++j)
{
printf("Enter elements a%d%d: ",i+1,j+1);
scanf("%d",&a[i][j]);
}
}

printf("\nEnter elements of matrix 2:\n");
for(i=0; i<r2; ++i)
{
for(j=0; j<c2; ++j)
{
printf("Enter elements b%d%d: ",i+1,j+1);
scanf("%d",&b[i][j]);
}
}

for(i=0; i<r1; ++i)
{
for(j=0; j<c2; ++j)
{
mult[i][j]=0;
}
}

for(i=0; i<r1; ++i)
{
for(j=0; j<c2; ++j)
{
for(k=0; k<c1; ++k)
{
mult[i][j]+=a[i][k]*b[k][j];
}
}
}
printf("\nOutput Matrix:\n");
for(i=0; i<r1; ++i)
{
for(j=0; j<c2; ++j)
{
printf("%d ",mult[i][j]);
if(j==c2-1)
printf("\n\n");
}
}
}``````
output
Enter rows and column for first matrix: 2
2
Enter rows and column for second matrix:2
2
Enter elements of matrix 1
Enter elements a11 1
Enter elements a12 0
Enter elements a21 0
Enter elements a22 1
Enter elements of matrix 2
Enter elements b11 1
Enter elements b12 0
Enter elements b21 0
Enter elements b22 1
output matrix
1    0
0    1

flag

### Join with account you already have

Preview

Online-Classroom Classes
www.writeabc.com

1 person following this question

Question tags

c × 1

Asked 3 years and 5 months ago ago
Number of Views -342