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AJ PHP Software Source Code Math Library
Array Average

float array_average ( array_number a)

Description:

array_average calculates the mean or average of an array of numbers.

Source Code:

 function array_average (\$a) {   //variable and initializations   \$the_result = 0.0;   \$the_array_sum = array_sum(\$a); //sum the elements   \$number_of_elements = count(\$a); //count the number of elements   //calculate the result   \$the_result = \$the_array_sum / \$number_of_elements;   //return the value   return \$the_result; }

Example:

 "; echo "a[1] = \$a[1]
"; echo "a[2] = \$a[2]
"; echo "the_average = \$the_average
"; ?>

Run Example

 array average solve for the average of an array factorial integer solve for the factorial of an integer log base solve for the base of the logarithm function

References - Books:
Max A. Sobel, Nobert Lerner. 1991. Precalculus Mathematics. Prentice Hall.
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