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File: application/third_party/PHPExcel/Shared/JAMA/utils/Maths.php

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File: application/third_party/PHPExcel/Shared/JAMA/utils/Maths.php
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: PHP Thesis Proposal Hub
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Last change:
Date: 1 year ago
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<?php
/**
 * @package JAMA
 *
 * Pythagorean Theorem:
 *
 * a = 3
 * b = 4
 * r = sqrt(square(a) + square(b))
 * r = 5
 *
 * r = sqrt(a^2 + b^2) without under/overflow.
 */
function hypo($a, $b)
{
    if (
abs($a) > abs($b)) {
       
$r = $b / $a;
       
$r = abs($a) * sqrt(1 + $r * $r);
    } elseif (
$b != 0) {
       
$r = $a / $b;
       
$r = abs($b) * sqrt(1 + $r * $r);
    } else {
       
$r = 0.0;
    }
    return
$r;
}
// function hypo()


/**
 * Mike Bommarito's version.
 * Compute n-dimensional hyotheneuse.
 *
function hypot() {
    $s = 0;
    foreach (func_get_args() as $d) {
        if (is_numeric($d)) {
            $s += pow($d, 2);
        } else {
            throw new PHPExcel_Calculation_Exception(JAMAError(ARGUMENT_TYPE_EXCEPTION));
        }
    }
    return sqrt($s);
}
*/