src/Coordinate.php
protected function isNumericInBounds(float $value, float $lower, float $upper): bool
    {
        return !($value < $lower || $value > $upper);
    }
protected function isNumericInBounds(float $value, float $lower, float $upper): bool
    {
        return !($value < $lower || $value > $upper);
    }
protected function isNumericInBounds ( float $ value , float $ lower , float $ upper ) : bool { return ! ( $ value < $ lower || $ value > $ upper ) ; }
Checks if the given value is (1) numeric, and (2) between lower
and upper bounds (including the bounds values).

@param float $value
@param float $lower
@param float $upper

@return bool
Checks if the given value is ( 1 ) numeric and ( 2 ) between lower and upper bounds ( including the bounds values ) .