Matrix:
-Multidimensional Array
-Matrix consist of the rows and columns.
Syntax-
array[row][column]
//Martix with numbers of rows and columns
Diagonal of matrix:
condition: matrix must be sqaure matrix
Example-
matrix is:
1 2 3
4 5 6
7 8 9
Product of Diagonal elements is 45
program-
#include< stdio.h>
int main()
{
int a[10][10],r,c,i,j,pro=1;
printf("Enter rows and columns for Matrix\n");
scanf("%d%d",&r,&c);
//input in matrix
printf("Enter %d number in matrix\n",r*c);
for(i=0;i< r;i++)
{
for(j=0;j< c;j++){
scanf("%d",&a[i][j]);
}
}
//calculate Product of diagonal elements
for(i=0;i< r;i++)
{
for(j=0;j< c;j++)
{
if(i==j){
pro=pro*a[i][j];
}
}
}
printf("Product of diagonal elements is %d",pro);
}
Enter rows and columns for Matrix
3 3
Enter 9 number in matrix
1 2 3 4 5 6 7 8 9
Product of diagonal elements is 45