Sum of secondary diagonal elements of matrix
Write a C Program to find sum of secondary diagonal elements of a matrix. Here’s simple Program to find the sum of opposite diagonal elements of a matrix in C Programming Language.
What is Matrix ?
Matrix representation is a method used by a computer language to store matrices of more than one dimension in memory. C uses “Row Major”, which stores all the elements for a given row contiguously in memory.
Two-dimensional Arrays : :
The simplest form of multidimensional array is the two-dimensional array. A two-dimensional array is, in essence, a list of one-dimensional arrays. An m × n (read as m by n) order matrix is a set of numbers arranged in m rows and n columns.
To declare a two-dimensional integer array of size [x][y], you would write something as follows −
- type arrayName [ x ][ y ];
Where type can be any valid C data type and arrayName will be a valid C identifier.
Below is the source code for C Program to find sum of secondary diagonal elements of a matrix which is successfully compiled and run on Windows System to produce desired output as shown below :
SOURCE CODE : :
/* C Program to find sum of secondary diagonal elements of a matrix */ #include <stdio.h> int main() { int A[10][10],i,j,m,n; int row, col, sum = 0; printf("Enter no. of rows :: "); scanf("%d", &m); printf("\nEnter no. of cols :: "); scanf("%d",&n); printf("\nEnter values to the matrix :: \n"); for (i = 0; i < m; i++) { for (j = 0; j < n; j++) { printf("\nEnter a[%d][%d] value :: ",i,j); scanf("%d", &A[i][j]); } } printf("\nThe given matrix is :: \n\n"); for (i = 0; i < m; ++i) { for (j = 0; j < n; ++j) { printf("\t%d", A[i][j]); } printf("\n\n"); } /* * Finds the sum of minor diagonal elements */ for (i = 0; i < m; ++i) { sum = sum + A[i][m - i - 1]; } printf("\nSum of Secondary diagonal elements = %d", sum); return 0; }
Output : :
/* C Program to find sum of secondary diagonal elements of a matrix */ Enter no. of rows :: 3 Enter no. of cols :: 3 Enter values to the matrix :: Enter a[0][0] value :: 1 Enter a[0][1] value :: 3 Enter a[0][2] value :: 5 Enter a[1][0] value :: 7 Enter a[1][1] value :: 9 Enter a[1][2] value :: 8 Enter a[2][0] value :: 6 Enter a[2][1] value :: 4 Enter a[2][2] value :: 2 The given matrix is :: 1 3 5 7 9 8 6 4 2 Sum of Secondary diagonal elements = 20 Process returned 0
Above is the source code for C Program to find sum of secondary diagonal elements of a matrix which is successfully compiled and run on Windows System.The Output of the program is shown above .
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