Function: minus(invert(logn(numbers('xyy'))), logn(numbers('xyy'))) if invert(logn(numbers('xyy'))) > 10 *(numbers('xyy') if invert(logn(numbers('xyy'))) > logn(numbers('xyy')) else minus(invert(logn(numbers('xyy'))), logn(numbers('xyy')))) else minus(invert(logn(numbers('xyy'))), logn(numbers('xyy'))) if invert(logn(numbers('xyy'))) > numbers('xyy') else logn(numbers('xyy'))