Note: this distributed version runs only under Mac OS X 10.4 on PPC. (The preferred installation for Mac is by using Fink, see INSTALL.fink) Installation of Singular from the CD Do not try to use the Finder for the installation! After inserting the CD open a terminal (under /Applications/Utilities) and type the following commands (you need an Admin Account): cd /usr/local sudo tar -xvzf /Volumes/CDROM/MAC/OSX/Singular-3-0-3-ppcMac-darwin.tar.gz sudo tar -xvzf /Volumes/CDROM/MAC/OSX/Singular-3-0-3-share.tar.gz sudo ln -sf /usr/local/Singular/3-0-3/ppcMac-darwin/Singular /usr/local/bin/Singular-3-0-3 The first two commands unpack the tar.gz files and copy the Singular files (binaries and documentation, libs, etc) to /usr/local/Singular/3-0-3. The last command creates a link in /usr/local/bin so that you can just type Singular-3-0-3 to run Singular in any terminal. (The expert might wish to read the INSTALL_unix.html file in the UNIX directory for alternatives).