Function: gradient[0](numbers("per") if mod(numbers("per"), numbers("xxr")) if numbers("per") if mod(numbers("per"), numbers("xxr")) > numbers("xxr") else numbers('rrr') > numbers("per") else numbers("xxr") > mod(numbers("per"), numbers("xxr")) if numbers('rrr') > numbers("xxr") else numbers("per") else mod(numbers("per"), numbers("xxr")))
