Function: gradient[1](sqrt(2 *(numbers('yxr'))) if 2 *(numbers('yxr')) > minus(sqrt(2 *(numbers('yxr'))) if 2 *(numbers('yxr')) > numbers('ryy') else numbers('yxr'), sqrt(2 *(numbers('yxr')))) else 2 *(numbers('yxr')) if numbers('ryy') > sqrt(2 *(numbers('yxr'))) else numbers('yxr'))
