Erlang B Calculator

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Version:	1.0
Author:	Jeffrey Clement
Status:	Active

A quick console eiffel program that does your Erlang B calculations for both service quality and capacity.

Project Description

1. About

A simple little CLI application written in Eiffel that does Erlang B calculations. It offers both a command line mode and an interactive mode. It should run fine on any platform with an Eiffel compiler. Prebuilt binaries are provided for Windows and Linux.

The application allows you to compute servicde quality and capacity and is simple to use and very fast for most problems.

1.1. Command-line Mode

Syntax is simple.

Listing #1
1.   erlangb [command] [num1] [num2]

where the command and num's correspond to the menu item in interactive mode and the two inputs it asks for in the order interactive mode uses.

For example to compute the capactity of a system where rho (p) is 4500 and the quality of service (or probability of blocking) is 0.01 do the following:

Listing #2
1.   U:\>erlangb c 4500 0.01
2.   4514

1.2. Interactive Mode

Listing #3
1.   U:\>erlangb
2.   Erlang B Calculator (by Jeff Clement)
3.   =====================================
4.   [p] Calculate rho (p)
5.   [b] Calculate blocking probability
6.   [c] Calculate capacity (lines)
7.   [q] Quit
8.   choice>c
9.   
10.  Rho (p): 4500
11.  Probability of Blocking (Pb): 0.01
12.  Capacity (c): 4514
13.  
14.  Erlang B Calculator (by Jeff Clement)
15.  =====================================
16.  [p] Calculate rho (p)
17.  [b] Calculate blocking probability
18.  [c] Calculate capacity (lines)
19.  [q] Quit
20.  choice>

Requirements

• Smart Eiffel

License

This software is licensed under the BSD license. Please make sure you have read and understood this license before downloading this software!

Copyright (c) 2003, Jeffrey Clement All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
• Neither the name of the Bluesine nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Downloads

File	Size	Last Modified
ChangeLog	0.00 kb	Thu Sep 23 05:59:12 2004
erlangb-1.0-linux-i386	32.13 kb	Thu Sep 23 05:59:13 2004
erlangb-1.0-src.tar.gz	2.60 kb	Thu Sep 23 05:59:13 2004
erlangb-1.0-src.tar.gz.asc	0.18 kb	Thu Sep 23 05:59:12 2004
erlangb-1.0-win32.exe	19.53 kb	Thu Sep 23 05:59:13 2004
erlangb-snapshot.tar.gz	2.41 kb	Thu Sep 23 05:59:13 2004