Function: minus(noise(2 *(minus(log(numbers('yyx'), numbers("xyx")) if numbers('epe') > numbers("xyx") else numbers('yyx'), log(numbers('yyx'), numbers("xyx"))))), 2 *(minus(numbers('yyx') if log(numbers('yyx'), numbers("xyx")) > numbers("xyx") else numbers('epe'), log(numbers('yyx'), numbers("xyx")))))
