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Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?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, $power)
> function pow($complex, $power): Complex
{ $complex = Complex::validateComplexArgument($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()); }