in C Plus Plus by
Q:

What is Matrix multiplication in C

1 Answer

0 votes
by

Matrix multiplication in C

Matrix multiplication in C: We can add, subtract, multiply and divide 2 matrices. To do so, we are taking input from the user for row number, column number, first matrix elements and second matrix elements. Then we are performing multiplication on the matrices entered by the user.

In matrix multiplication first matrix one row element is multiplied by second matrix all column elements.

Let's try to understand the matrix multiplication of 2*2 and 3*3 matrices by the figure given below:

Let's see the program of matrix multiplication in C.

#include<stdio.h>    

#include<stdlib.h>  

int main(){  

int a[10][10],b[10][10],mul[10][10],r,c,i,j,k;    

system("cls");  

printf("enter the number of row=");    

scanf("%d",&r);    

printf("enter the number of column=");    

scanf("%d",&c);    

printf("enter the first matrix element=\n");    

for(i=0;i<r;i++)    

{    

for(j=0;j<c;j++)    

{    

scanf("%d",&a[i][j]);    

}    

}    

printf("enter the second matrix element=\n");    

for(i=0;i<r;i++)    

{    

for(j=0;j<c;j++)    

{    

scanf("%d",&b[i][j]);    

}    

}    

    

printf("multiply of the matrix=\n");    

for(i=0;i<r;i++)    

{    

for(j=0;j<c;j++)    

{    

mul[i][j]=0;    

for(k=0;k<c;k++)    

{    

mul[i][j]+=a[i][k]*b[k][j];    

}    

}    

}    

//for printing result    

for(i=0;i<r;i++)    

{    

for(j=0;j<c;j++)    

{    

printf("%d\t",mul[i][j]);    

}    

printf("\n");    

}    

return 0;  

}  

Output:

enter the number of row=3

enter the number of column=3

enter the first matrix element=

1 1 1

2 2 2

3 3 3

enter the second matrix element=

1 1 1

2 2 2

3 3 3

multiply of the matrix=

6 6 6

12 12 12

18 18 18

Click here to read more about Loan/Mortgage
Click here to read more about Insurance

Related questions

+1 vote
asked Jan 21 in C Plus Plus by SakshiSharma
+2 votes
asked Jan 20 in C Plus Plus by SakshiSharma
0 votes
asked Jan 6 in C Plus Plus by GeorgeBell
0 votes
asked Nov 24, 2020 in C Plus Plus by sharadyadav1986
0 votes
asked Jun 15, 2020 in C Plus Plus by Robindeniel
...