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