src/Malenki/Math/RandomComplex.php
protected static function checkOrder($float_min, $float_max)
    {
        if (!is_numeric($float_min) && !is_numeric($float_max)) {
            throw new \InvalidArgumentException('Min and max values must be valid numbers.');
        }

        if ($float_min >= $float_max) {
            throw new \InvalidArgumentException('Max value must be greater than min value!');
        }
    }
protected static function checkOrder($float_min, $float_max)
    {
        if (!is_numeric($float_min) && !is_numeric($float_max)) {
            throw new \InvalidArgumentException('Min and max values must be valid numbers.');
        }

        if ($float_min >= $float_max) {
            throw new \InvalidArgumentException('Max value must be greater than min value!');
        }
    }
Check helper for some method to tests their arguments.

If given argument are not numeric or first is greater than the second,
then Exception is risen.

@throw \InvalidArgumentException If min and max values are not numbers.
@throw \InvalidArgumentException If min value is greater than max.
@param  float $float_min
@param  float $float_max
@static
@access protected
@return void