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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 argument() function
 *
 * @copyright  Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex)
 * @license    https://opensource.org/licenses/MIT    MIT
 */
namespace Complex;

/**
 * Returns the argument of a complex number.
 * Also known as the theta of the complex number, i.e. the angle in radians
 *   from the real axis to the representation of the number in polar coordinates.
 *
 * This function is a synonym for theta()
 *
 * @param     Complex|mixed    $complex    Complex number or a numeric value.
 * @return    float            The argument (or theta) value of the complex argument.
 * @throws    Exception        If argument isn't a valid real or complex number.
 *
 * @see    theta
 */
< function argument($complex)
> function argument($complex): float
{ return theta($complex); }