Function: band pass(gradient[1](divide(numbers("per"), numbers("xyx"))) if divide(numbers("per"), numbers("xyx")) > numbers("per") if numbers("xyx") > gradient[1](divide(numbers("per"), numbers("xyx"))) else divide(numbers("per"), numbers("xyx")) else band pass(numbers("xyx") if numbers("per") > divide(numbers("per"), numbers("xyx")) else gradient[1](divide(numbers("per"), numbers("xyx")))))
