Initial commit: apps.supersam24.ru

vendor/markbaker/complex/classes/src/functions/pow.php

@@ -0,0 +1,40 @@
+<?php
+
+/**
+ *
+ * Function code for the complex pow() function
+ *
+ * @copyright  Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex)
+ * @license    https://opensource.org/licenses/MIT    MIT
+ */
+namespace Complex;
+
+/**
+ * Returns a complex number raised to a power.
+ *
+ * @param     Complex|mixed    $complex    Complex number or a numeric value.
+ * @param     float|integer    $power      The power to raise this value to
+ * @return    Complex          The complex argument raised to the real power.
+ * @throws    Exception        If the power argument isn't a valid real
+ */
+function pow($complex, $power)
+{
+    $complex = Complex::validateComplexArgument($complex);
+
+    if (!is_numeric($power)) {
+        throw new Exception('Power argument must be a real number');
+    }
+
+    if ($complex->getImaginary() == 0.0 && $complex->getReal() >= 0.0) {
+        return new Complex(\pow($complex->getReal(), $power));
+    }
+
+    $rValue = \sqrt(($complex->getReal() * $complex->getReal()) + ($complex->getImaginary() * $complex->getImaginary()));
+    $rPower = \pow($rValue, $power);
+    $theta = $complex->argument() * $power;
+    if ($theta == 0) {
+        return new Complex(1);
+    }
+
+    return new Complex($rPower * \cos($theta), $rPower * \sin($theta), $complex->getSuffix());
+}