Function: abs(sum(numbers("xxr"), numbers("yxx"))) if gradient[2](numbers("xxr") if abs(sum(numbers("xxr"), numbers("yxx"))) > numbers("yxx") else sum(numbers("xxr"), numbers("yxx"))) > sum(numbers("xxr"), numbers("yxx")) else numbers("xxr") if abs(sum(numbers("xxr"), numbers("yxx"))) > sum(numbers("xxr"), numbers("yxx")) else numbers("yxx")