Sum of All Matrix Elements using Array Functions
This PHP program uses array functions to find the sum of all elements in a matrix. It first flattens the matrix into a single-dimensional array using array_map( ) and array_sum( ), then calculates the sum using array_sum( ).
Example: Implementation to find the sum of all Matrix elements.
PHP
<?php function sumMatrixElements($matrix) { return array_sum(array_map("array_sum", $matrix)); } // Driver code $matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]; $sum = sumMatrixElements($matrix); echo "Sum of all matrix elements: $sum"; ?> |
Output
Sum of all matrix elements: 45
Explanation:
- The
sumMatrixElementsfunction uses thearray_map( )function to applyarray_sum()to each row of the matrix. This results in an array of row sums. - The
array_sum( )function is then used again to sum the row sums, resulting in the total sum of all matrix elements.
PHP Program to Find Sum of All Matrix Elements
Finding the sum of all elements in a matrix is a common operation in mathematical computations and programming. In PHP, this can be achieved using various approaches, including loops and array functions. In this article, we will explore different methods to calculate the sum of all elements in a matrix.
Table of Content
- Using Nested Loops
- Using Array Functions
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