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               intpakX v1.2 - Interval Arithmetic in Maple 

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                              General Terms

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intpakX v1.2 is a new, integrated version of the Maple package intpakX for 
interval computations.
It integrates and updates the package
- intpak by R. Corless and A. Connell
and its extension
- intpakX by I. Geulig and W. Kraemer
intpakX v1.2 was written/updated by M. Grimmer.

intpakX v1.2 provides basic data types and operations for interval 
arithmetic as well as additional features for further interval computation.
Through this package, the features of the above mentioned packages are 
combined in one version.

v1.2 is an update of versions v1.0, v1.0.1, v1.1.

intpakX v1.2
(c) 2005 Scientific Computing/Software Engineering Research Group,
Department of Mathematics, University of Wuppertal, Germany

Contact: 
kraemer@math.uni-wuppertal.de
markus.grimmer@math.uni-wuppertal.de 
http://www.math.uni-wuppertal.de/wrswt

Disclaimer:
While every effort has been made to validate the solutions in this package,
Waterloo Maple Inc. and the contributors are not responsible for any errors
contained and are not liable for any damages resulting from the use of this
material.
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intpakX v1.2: New version of  intpakX incorporating minor changes, 
including:
- Modified interval Newton graphics implementation

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                    I M P O R T A N T    H I N T S

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This document is not the package itself. You should have received the 
intpakX v1.2 worksheet (intpakX-v1.2.mw) and/or the library files
"maple.ind" and "maple.lib" (located in a subdirectory ./interval/mylib) 
together with this document. 

In addtion, there is a User Guide available introducing the most 
important features provided by intpakX v1.2, either distributed as one 
worksheet "intpakXuserguidev1.mw" (by the WRSWT group, Department of 
Mathematics and Natural Sciences, University of Wuppertal) 
or (by Maplesoft(TM)) as a number of separate worksheets for 
different topics as, for example, "NewtonMethod.mws". The two distributions 
have identical contents.
(The file extensions ".mw" and ".mws" both refer to Maple Worksheets, the 
first being called "Maple Worksheet", the latter "Maple Classic Worksheet"
(from Maple 9 up)).


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                         Installing/Using intpakX

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If you received intpakX as library files (*.ind and *.lib), save them in 
a directory of your choice and proceed with "How to load intpakX once the 
library has been created." (see below).
If you received intpakX as a worksheet (this should be the default if 
downloaded from www.math.uni-wuppertal.de/wrswt/...) and did 
not yet create the package library, proceed with 
"Using intpakX the first time (or 'How to create the package library')" 
(see below).


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   Using intpakX the first time (or 'How to create the package library')

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Before you start using intpakX v1.2 the first time, you must create the 
intpakX package library  in a directory of your choice. 
The following steps have to be done to create the package library:

i) Load the worksheet containing the package (intpakX-v1.2.mw) into Maple.
To load a worksheet properly, you need the graphical Maple version, not the 
command line version as sometimes preferred by some users. 
(If you do not have any graphical Maple version available, you can
contact us for a text version of the worksheet - see the addresses given 
above).

ii) Go to the very end of that worksheet and follow the instructions in 
the section "How to create the intpakX library from this worksheet".


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          How to load intpakX once the library has been created

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Open a new, empty worksheet and load the library as follows, replacing 
"<new-library-path>" by the directory path you chose to save the library in  
(e.g., "/usr/maple/intpakX/lib").

> restart;
> libname:="<new-library-path>", libname;
> with(intpakX);

! ATTENTION WINDOWS(TM) USERS:
! To make Maple (Windows(TM) version) interpret the path specification 
! correctly, you have to modify the path specification by replacing each 
! backslach ("\") by a double backslash ("\\")! 
! For example, to specify "C:\Maple\intpakX\lib" as the 
! desired directory, you'll have to modify the "libname" line to:
!
! libname:="C:\\Maple\\intpakX\\lib", libname;


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