Function: minus(numbers("xxr") if log(sqrt(numbers("xxr")), numbers("xxr")) > sqrt(numbers("xxr")) else numbers('ryy') if numbers("xxr") > sqrt(numbers("xxr")) else log(sqrt(numbers("xxr")), numbers("xxr")), sqrt(numbers("xxr")) if numbers('ryy') > log(sqrt(numbers("xxr")), numbers("xxr")) else numbers("xxr"))
