Reduce computer algebra system
Encyclopedia
Reduce is a general-purpose computer algebra system
geared towards applications in physics.
The development of the Reduce computer algebra system was started in the 1960s by Anthony C. Hearn. Since then, many scientists from all over the world have contributed to its development under his direction.
Reduce is written entirely in its own LISP
dialect called Standard LISP, expressed in an Algol
-like syntax called RLISP. The latter is used as a basis for Reduce's user-level language.
Implementations of Reduce are available on most variants of Unix
, Linux
, Microsoft Windows
, or Apple Macintosh systems by using an underlying Portable Standard LISP
or Codemist Standard LISP implementation.
Reduce was open source
d on December 2008 and is available for free under a modified BSD license on SourceForge
. Previously it had cost $695.
Computer algebra system
A computer algebra system is a software program that facilitates symbolic mathematics. The core functionality of a CAS is manipulation of mathematical expressions in symbolic form.-Symbolic manipulations:...
geared towards applications in physics.
The development of the Reduce computer algebra system was started in the 1960s by Anthony C. Hearn. Since then, many scientists from all over the world have contributed to its development under his direction.
Reduce is written entirely in its own LISP
Lisp programming language
Lisp is a family of computer programming languages with a long history and a distinctive, fully parenthesized syntax. Originally specified in 1958, Lisp is the second-oldest high-level programming language in widespread use today; only Fortran is older...
dialect called Standard LISP, expressed in an Algol
ALGOL
ALGOL is a family of imperative computer programming languages originally developed in the mid 1950s which greatly influenced many other languages and became the de facto way algorithms were described in textbooks and academic works for almost the next 30 years...
-like syntax called RLISP. The latter is used as a basis for Reduce's user-level language.
Implementations of Reduce are available on most variants of Unix
Unix
Unix is a multitasking, multi-user computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Brian Kernighan, Douglas McIlroy, and Joe Ossanna...
, Linux
Linux
Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds...
, Microsoft Windows
Microsoft Windows
Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...
, or Apple Macintosh systems by using an underlying Portable Standard LISP
Portable Standard Lisp
Portable Standard Lisp is a tail-recursive dynamically bound dialect of Lisp inspired by its predecessor, Standard Lisp and the Portable Lisp Compiler. It was developed by researchers at the University of Utah in 1980, which released PSL 3.1; development was handed over to developers at...
or Codemist Standard LISP implementation.
Reduce was open source
Open source
The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology...
d on December 2008 and is available for free under a modified BSD license on SourceForge
SourceForge
SourceForge Enterprise Edition is a collaborative revision control and software development management system. It provides a front-end to a range of software development lifecycle services and integrates with a number of free software / open source software applications .While originally itself...
. Previously it had cost $695.
External links
- Tony Hearn's Reduce website.
- Reduce SourceForge project page.
- Reduce website on SourceForge.
- Anthony C. Hearn, Reduce User's Manual Version 3.8, February 2004. In HTML format.
- Anthony C. Hearn, "Reduce: The First Forty Years", invited paper presented at the A3L Conference in Honor of the 60th Birthday of Volker Weispfenning, April 2005.