Function: divide(numbers("yxx"), numbers('rrr')) if cos(2 *(divide(numbers("yxx"), numbers('rrr')))) > 2 *(divide(numbers("yxx"), numbers('rrr'))) else minus(cos(2 *(divide(numbers("yxx"), numbers('rrr')))), 2 *(divide(numbers("yxx"), numbers('rrr'))))
