Download and Installation

The current version of RISCErgoSum is 1.1.3.

Short Instruction

Get one of the files riscergosum-1.1.3.tgz or riscergosum-1.1.3.zip from http://www.risc.jku.at/research/combinat/software/source/mathematica/ergosum and extract it in the Applications subdirectory of your local Mathematica $UserBaseDirectory.

Detailed Instruction

Start Mathematica and type:

$UserBaseDirectory

at the command prompt.

Suppose this value is /home/hemmecke/.Mathematica. Exit Mathematica and extract the .tgz file into the Applications subdirectory.

Under Linux (substitute appropriately):

tar xvzf riscergosum-x.y.z.tgz -C /home/hemmecke/.Mathematica/Applications

Under MacOS the output from $UserBaseDirectory will most probably look similar to /Users/hemmecke/Library/Mathematica. Thus, in a terminal type:

tar xvzf riscergosum-x.y.z.tgz -C /Users/hemmecke/Library/Mathematica/Applications

Note that the Library folder is usually hidden in the file browser.

Under Windows (substitute appropriately) unzip the riscergosum-x.y.z.zip and move the files (and subdirectories) to $UserBaseDirectory/Applications.

After extracting the files into the Applications subdirectory, you should find there the subdirectories

Applications/RISC
Applications/InvPhi

and in particular the file

Applications/RISC/MultiSum.m

If you don’t see RISC and InvPhi directly under Applications, then something went wrong and the following will not work.

Start Mathematica and type:

<< RISC`MultiSum`

You should then see something like:

Package MultiSum version 2.3 written by Kurt Wegschaider
enhanced by Axel Riese and Burkhard Zimmermann
Copyright 1995-2009, Research Institute for Symbolic Computation (RISC),
Johannes Kepler University, Linz, Austria