Function: gradient[2](divide(numbers('epe') if log(numbers("xxr") if numbers('yxy') > numbers("xxx") else numbers('epe'), numbers("xxr")) > numbers("xxr") else numbers("xxx") if numbers("xxr") > numbers('yxy') else numbers('epe'), log(numbers('yxy') if numbers("xxx") > numbers('epe') else numbers("xxr"), numbers("xxr"))))
