Function: invert(numbers("yyy") if divide(numbers('xry'), numbers("yyy")) > numbers('xry') else numbers('xry')) if gradient[0](invert(numbers('xry') if divide(numbers('xry'), numbers("yyy")) > numbers("yyy") else numbers('xry'))) > numbers("yyy") if numbers('xry') > numbers('xry') else divide(numbers('xry'), numbers("yyy")) else divide(numbers('xry'), numbers("yyy"))
