Function: gradient[0](divide(minus(numbers('yxr') if square(numbers("xxy")) > numbers("xxy") else numbers('rep'), square(numbers("xxy"))), numbers("xxy") if numbers('yxr') > square(numbers("xxy")) else numbers('rep')) if minus(numbers('rep') if square(numbers("xxy")) > numbers("xxy") else numbers('yxr'), square(numbers("xxy"))) > square(numbers("xxy")) else square(numbers("xxy")) if numbers('yxr') > numbers('rep') else numbers("xxy"))
