PHP 5.2.0 이상 버전에서 PHPExcel 라이브러리 적용:wq

lib/PHPExcel/Shared/JAMA/utils/Maths.php

@@ -0,0 +1,44 @@
+<?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);
+}
+*/