**Hyperbolic**-- Hyperbolic, as the name suggests, is a collection of functions for investigating real hyperbolic geometry. The package deals with basic geometric objects and isometries in all dimensions, with graphics output in dimensions 2 and 3. Hyperbolic.m was developed at the Center by Oliver Goodman, Charlie Bunn and Silvio Levy, and is available from the Center ftp archive.**Circlepack**-- Circlepack is a collection of Mathematica packages to calculate and display circle packings given a triangulation of a closed orientable surface. It operates in whichever geometry is appropriate depending on the genus of the surface, and can compute packings with specified overlaps.**Standard Packages**--*Mathematica*is distributed with a collection of libraries from Wolfram Research containing a wealth of specialized functions. The Center library contains documentation describing the contents of the standard libraries, but your best bet may be to simply go to the directory`/usr0/pkg/mathematica/2.2/sun4/Packages/`

and browse. The

`README`

file in that directory contains a listing of packages, though you will have to look at the files themselves to see what functions they contain. However, this is an excellent way to learn about*Mathematica*programming.

**Share Libraries**-- Maple is distributed with a collection of user contributed routines, packages and worksheets. They reside in the directory`/u/pkg/mapleV3/share`

. The best way to find out about them is to use the online documentation. Load the main library by executing the command`with(share);`

from within maple. Then issue the command

`?share`

, and follow the instructions given there. Various other text and TeX documentation can be found by poking around in the /share directory and its subdirectories.

**Graphics Gems**-- The C source code for the routines from the book "Graphics Gems" (Editor Andrew S. Glassner, Academic Press, 1990), which is in the Center library, is available in the directory`/u/src/grap/gems`

.**Numerical Recipes in C**-- The book "Numerical Recipes in C", (Eds. Flannery, Press, Teukolsky and Vetterling, Cambridge Univ. Press, 1988) is in the Center library. The source code for the routines therein reside in`/u/src/new/misc/crecipes`

. The object code is in the library`-lcrecipes`

.**linpack and netlib**-- The linpack library and a selection of netlib routines are available in`/u/src/math/linpack`

and`/u/src/math/netlib`

respectively. The linpack object code is in`/usr5/sgi/lib/liblinpack.a`

Comments to:
webmaster@geom.umn.edu

Created: Fri Sep 8 11:39:00 1995 ---
Last modified: Jun 18 1996