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<?php /** * * Function code for the complex abs() function * * @copyright Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex) * @license https://opensource.org/licenses/MIT MIT */ namespace Complex; /** * Returns the absolute value (modulus) of a complex number. * Also known as the rho of the complex number, i.e. the distance/radius * from the centrepoint to the representation of the number in polar coordinates. * * This function is a synonym for rho() * * @param Complex|mixed $complex Complex number or a numeric value. * @return float The absolute (or rho) value of the complex argument. * @throws Exception If argument isn't a valid real or complex number. * * @see rho * */< function abs($complex)> function abs($complex): float{ return rho($complex); }