Function: numbers("xxr") if logn(numbers("xxr")) > numbers('epe') else gradient[0](logn(numbers("xxr"))) if logn(numbers("xxr")) > gradient[0](logn(numbers("xxr"))) else product(numbers("xxr") if logn(numbers("xxr")) > numbers('epe') else gradient[0](logn(numbers("xxr"))), gradient[0](logn(numbers("xxr"))))
