Function: minus(abs(numbers("xxr")) if numbers("xxr") > exp(numbers("xxr") if abs(numbers("xxr")) > numbers('rrr') else numbers('xyy'), abs(numbers("xxr"))) else numbers("xxr") if numbers('rrr') > abs(numbers("xxr")) else numbers('xyy'), exp(numbers('rrr') if abs(numbers("xxr")) > numbers('xyy') else numbers("xxr"), abs(numbers("xxr"))))