Function: logn(sum(minus(sqrt(numbers("xxr")) if numbers('ryy') > numbers("xxr") else numbers('ryy') if numbers('rrr') > numbers("xxr") else sqrt(numbers("xxr")), numbers('rrr') if sqrt(numbers("xxr")) > numbers("xxr") else numbers('ryy')), numbers('ryy') if numbers("xxr") if numbers('ryy') > numbers('rrr') else sqrt(numbers("xxr")) > numbers("xxr") else sqrt(numbers("xxr"))))
