Function: log(gradient[1](sum(max(numbers("xxr"), numbers('xry')), numbers("xxr")) if numbers("xxr") > max(numbers("xxr"), numbers('xry')) else numbers('xry')), numbers('xry') if max(numbers("xxr"), numbers('xry')) > sum(max(numbers("xxr"), numbers('xry')), numbers("xxr")) else numbers("xxr"))
