Function: sum(numbers("per") if min(numbers("xxr"), numbers('epe')) > numbers("xxr") else numbers('epe') if min(numbers("xxr"), numbers('epe')) > tan(numbers('epe') if numbers("per") > min(numbers("xxr"), numbers('epe')) else numbers("xxr")) else gradient[2](tan(numbers("xxr") if min(numbers("xxr"), numbers('epe')) > numbers('epe') else numbers("per"))), gradient[2](tan(numbers("per") if min(numbers("xxr"), numbers('epe')) > numbers("xxr") else numbers('epe'))))
