Matrices Multiplication using Arrays C program

C Programs / Matrices Multiplication using Arrays C program

Program Name

Write a C Program for Matrices Multiplication using Arrays.

Theory
Matrices A and B are Multipied and result is stored in the third matrix.

Program Code


 #include<stdio.h>
 #include<stdlib.h>
 
int main()
{
int a[4][4],b[4][4],c[4][4],i,j,k;
int fr,fc,sr,sc;
printf("Enter First matrix No of Rows and Columns");
scanf("%d%d",&fr,&fc);
printf("Enter Second No of Rows and Columns");
scanf("%d%d",&sr,&sc);

if(fc!=sr)
{
printf("Maltiplication is not Possible");
exit(0);
}

printf("Enter 1 St Matrix Elements");
for(i=0;i<fr;i++)
for(j=0;j<fc;j++)
scanf("%d",&a[i][j]);

printf("Enter 2nd Matrix Elements");
for(i=0;i<sr;i++)
for(j=0;j<sc;j++)
scanf("%d",&b[i][j]);

printf("The Resultant of Matrix Multiplication is \n");
for(i=0;i<fr;i++)
{
for(j=0;j<sc;j++)
{
c[i][j]=0;
for(k=0;k<fc;k++)
c[i][j]=c[i][j]+a[i][k]*b[k][j];
printf("%d ",c[i][j]);
}
printf("\n");
}
    return 0;
}

Input
Enter First matrix No of Rows and Columns2 2
Enter Second No of Rows and Columns2 2
Enter 1 St Matrix Elements1 2 3 4
Enter 2nd Matrix Elements1 2 3 4

Output
The Resultant of Matrix Multiplication is
7 10
15 22

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