Function: tan(numbers("yxx")) if product(tan(numbers("yxx")), numbers("yxx")) > product(tan(numbers("yxx")), numbers("yxx")) if numbers("yxx") > numbers('epe') else tan(numbers("yxx")) else product(tan(numbers("yxx")) if numbers('epe') > numbers("yxx") else product(tan(numbers("yxx")), numbers("yxx")), product(tan(numbers("yxx")), numbers("yxx")))