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