Simulates a bank queue graphically. Uses the negative exponential

distribution. v1.0 for TI-82.



 

    QUEUESIM v1.0 is Freeware

    Commercial Distribution Restricted                 

    Copyright (C) 1994 by Mikael Bonnier, Lund, Sweden.

 

 

1. System and Memory Requirements

This program is for the TI-82. It consists of one main program that

uses 342 bytes. It requires additionally 105 bytes for data to run.

 

QUEUESIM uses or alters these variables:

Real:   A,C,F,G,Q,S,Y

 

 

2. Installation

If you have TI-GRAPH LINK UUDecode this file, and send the resulting

QUEUESIM.82P program to the calculator. If you don't have a link you

will have to enter the ASCII82P listing below.

 

 

3. User Instructions

Example:

prgmQUEUESIM [ENTER]

AVERAGE TIMES:

INTER ARRIVAL? 20 [ENTER]

SERVICE? 15 [ENTER]

 

And watch the horizontal bar graph just below Time increase and

decrease. One pixel corresponds to one queue member. The time

is in the same units as the inter arrival and service times

(you may pretend it is in minutes). Note that Time is simulated

in this program, if the the TI-82 had a realtime clock one could

wait after each program loop until the realtime was equal to

the calculated time. This program uses the negative exponential

distribution, this models an old fashioned bank queue.

 

Warning: Don't forget your calculator with this program running,

or else you have to buy new batteries.

 

 

4. Program Comments

The program uses lots of ugly gotos, which is the only way to

code this on the TI-82 (I suppose).

 

 

5. Reference

A. K. Dewdney.

"The (New) Turing Omnibus", ch 4 "Simulation".

Computer Science Press and W. H. Freeman and Company, New York, 1993.

 

 

Suggestions, improvements, bug, and bad-English-in-doc reports

are always welcome to:

                 Mikael Bonnier

                 Osten Undens gata 88

                 S-227 62  LUND

                 SWEDEN

                             

Or use my internet address:

                 mikaelb@df.lth.se

 

// Mikael Bonnier

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