Function: square(gradient[0](numbers('yxy') if numbers('yxy') if numbers("per") > numbers("xxr") else numbers('xyy') > band pass(sum(numbers("per") if numbers("xxr") > numbers('yxy') else numbers('xyy'), numbers('yxy'))) else sum(numbers("xxr") if numbers('xyy') > numbers("per") else numbers('yxy'), numbers('yxy'))))
