application/controllers/Ticketing.php
/**
     * Calculate interarrival time for the whole system M/M/c
     * @param $date
     * @return float
     */
Calculate interarrival time for the whole system M/M/c
@param $date
@return float
Calculate interarrival time for the whole system M / M / c @param $date @return float
public function interArrivalTime_System($date)
    {
        return 8.0;
    }
public function interArrivalTime_System ( $ date ) { return 8.0 ; }
Calculate interarrival time for the whole system M/M/c
 @param $date
 @return float
Calculate interarrival time for the whole system M / M / c @param $date @return float
//for one service M/M/1 //for multiple service M/M/C