There are two ways of getting SIMATH via anonymous ftp. The first one: You get the file "SIMATH-3.10.3.tar.gz". This is a "gzipped" tar-file. You can unpack it by typing 'gzcat SIMATH-3.10.3.tar.gz | tar xvf -' or something like that, depending on your installation of gzip. The second one: You get all the files "SIMATH-3.10.3.??", if available on your ftp server. These are pieces of the "gzipped" tar-file mentioned above. You will have to put the pieces together by typing 'cat SIMATH-3.10.3.?? | gunzip | tar xvf -' for example. You will need "gzip" to uncompress the SIMATH distribution. "gzip" is available on many ftp servers all over the world. On other servers, SIMATH might be stored in a different way. If you have problems unpacking SIMATH, please ask your system administrator or contact simath@math.uni-sb.de.