Singular version 1.1 University of Kaiserslautern Department of Mathematics Centre for Computer Algebra Authors: G.-M. Greuel, G. Pfister, H. Schoenemann (C) 1986-1998 All Rights Reserved README FILE FOR SINGULAR SHARED DATA DISTRIBUTION ================================================= IMPORTANT: Please see the COPYING.share file contained in this directory for license information for the Singular shared (i.e. architecture independent data). This directory contains the following subdirectories 'share/Singular' -- contains Singular library files and compute tables 'share/Singular/docs' -- contains dvi files of singular documentation 'info' -- contains Singular's info help file and the file 'COPYING.share' -- for licence and copying information information Note that this distribution does not contain the Singular binaries. Instead, it contains architecture-independent data (such as Singular's program libraries written in Singular's programming language). See below for information on how to obtain the Singular executable program. Installing the Singular executable program ========================================== In order to use Singular, you (1) need to obtain the suitable binary Singular program for your architecture. (2) Uncompress the binary and install it at an appropriate place in your executable path (e.g., /usr/local/bin) (3) Unpack Singular-1.1-share.tar.gz (a) in the directory /usr/local/, or (b) in another directory, say, $HOME/Singular, and set the environment variable SINGULARPATH to the subdirectory $HOME/Singular/share/Singular If you use the tcsh or csh shell, this can be accomplished by the command 'setenv SINGULARPATH $HOME/Singular/share/Singular'. If you use the bash, ksh, or sh shell, this can be accomplished by the command 'SINGULARPATH=$HOME/Singular/share/Singular;export SINGULARPATH' Furthermore, these commands should be put into your shell initialization file (e.g., $HOME/.tcshrc) Optional: (4) You may move the file singular.hlp contained in share/Singular to your info diretory (usually /usr/local/info) and add the line * Singular: (singular.hlp). The Singular manual to the 'dir' file contained in your info directory. (5) You may print the Singular manual (contained in docs/singular.dvi) and tutorial (contained in docs/tutorial.dvi). Overview of Singular ==================== Singular is a special-purpose computer algebra system for commutative algebra, algebraic geometry and singularity theory. The main features of Singular are: * Computations in very general rings (polynomial rings, localizations of rings at a prime ideal, tensor products of rings) over many ground fields (rational numbers, mod p numbers, Galois fields, transcendental/algebraic extensions) and monomial orderings (all standard monomial orderings, including matrix orderings) * Very fast standard (resp. Groebner) bases computations * Polynomial factorization, resultant, and gcd computations * Large variety of implemented related algorithm: FGLM, Hilbert-driven, Factorizing Buchberger; Minimal resolutions, Primary decomposition; Usual ideal theoretic operations; standard combinatorial algorithms. * Efficient and flexible communication links based on the MP protocol and library * Easy-to-use, command-driven user-interface * Intuitive, C-like programming language * Extensive libraries of procedures, written in Singular's programming language * Written in C/C++. Available as binary program for common hard- and software platforms (including most Un*x variants, MS-DOG, MacOS) Acknowledgments ================ Singular 1.1 is linked with the following libraries: readline-- The Gnu readline library (v. 2.0) (C) Free Software Foundation gmp -- The Gnu Multiple precision library (v: 2.0.2) distribution (C) Free Software Foundation MP -- The Multi Protocol library (v: 1.1.2) distribution (C) Gray/Kajler/Wang; Kent State University factory -- The factory library (v: 1.3a) for polynomial factorization (C) Greuel/Stobbe U of Kaiserslautern libfac -- The libfac library (v: 0.3.0) for characteristic set computations (C) Mesollen U of Saarbruecken We would like to thank all authors of these who contributed these libraries. Distribution of Singular ======================== The newest version of Singular is always available by anonymous ftp from www.mathematik.uni-kl.de:/pub/Math/Singular Binary versions of Singular for common hard- and software platforms are contained in the files bin/Singular-1.1..gz where is, for example, 'linux', 'SunOS', etc. In general, Singular is only available as binary program. For exceptions, you may contact us at singular@mathematik.uni-kl.de Architecture - independent files (such as libraries written in the Singular programming language, and the Singular documentation) are distributed as Singular-1.1-share.tar.gz. See the file README.share for more information. Documentation to Singular is distributed as: Singular-1.1.dvi.gz - Reference manual in dvi format Tutorial.dvi.gz - Singular tutorial in dvi format Singular-1.1.ps.gz - Reference manual in postscript format Tutorial.dvi.gz - Singular tutorial in postscript format singular.hlp.gz - Reference manual in Info format Singular-1.1.html.tar.gz - Reference manual in html format The GMP library and the readline library are available at ftp.gnu.ai.mit.edu or its mirrors. The MP library library is avialbale from mcs.kent.edu:/pub/MP/ For further information on MP, see also http://symbolicnet.mcs.kent.edu/areas/protocols/mp.html The factory and libfac library are available from www.mathematik.uni-kl.de:/pub/Math/ More information about Singular: Comments, Questions, Bug Reports ================================================================= More and up-to-date information about Singular is always available from http://www.mathematik.uni-kl.de/~zca/Singular We very much welcome any comments, questions, and bug reports. Please contact us at singular@mathematik.uni-kl.de GOOD LUCK and ENJOY! Your Singular team.