# Mathematical prelude discussion

### From HaskellWiki

(merged with Haskell_and_mathematics/Hierarchy) |
(elementsofprogramming.com) |
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[http://magma.maths.usyd.edu.au/magma/htmlhelp/MAGMA.htm MAGMA] is an example of a language which embraced mathematical structure. [[User:MitchellNCharity|MitchellNCharity]] 23:16, 14 November 2006 (UTC) | [http://magma.maths.usyd.edu.au/magma/htmlhelp/MAGMA.htm MAGMA] is an example of a language which embraced mathematical structure. [[User:MitchellNCharity|MitchellNCharity]] 23:16, 14 November 2006 (UTC) | ||

− | [http://lambda-the-ultimate.org/node/1655#comment-20299 LtU thread 1655] | + | * [http://lambda-the-ultimate.org/node/1655#comment-20299 LtU thread 1655] |

− | Aldor/Axiom may be a place to look for a good type class hierarchy | + | * [http://www.axiom-developer.org/ Aldor/Axiom] may be a place to look for a good type class hierarchy |

+ | |||

+ | * [http://www.elementsofprogramming.com/eop-concepts.pdf Elements of Programming], Chapter 5 | ||

[[Category:Mathematics]] | [[Category:Mathematics]] |

## Revision as of 22:52, 31 October 2009

## Contents |

## 1 Purpose

There have been many ideas for improving the prelude's support for mathematics. Including the addition of algebraic classes. But the discussion is spread over years of list archives and a half dozen websites. And the discussion has never gelled.

This page is intended to collect links to past discussion, and to provide a focal point for advancing the discussion.

## 2 Todo

- Flesh out list of proposals. First from Libraries_and_tools/Mathematics.
- Add links to discussions in list archive, and elsewhere.

## 3 Libraries and proposals

### 3.1 Numeric Prelude

Working set of common type classes and instances.

### 3.2 Basic Algebra Library (BAL)

- Is not in community report 2006-06.
- 0.04/announce.txt (2006-02)
- www.botik.ru/pub/local/Mechveliani/basAlgPropos/
- Formerly refered to as "basic algebra proposal".

Categorical Approach to representing mathematical structures in Haskell: [1]

### 3.3 Haskell Prime'

Numeric classes on the Haskell' wiki

### 3.4 See Also

## 4 Discussion

*For me that probably starts with the semigroup/group/ring setup, and good*
arbitrary-precision as well as approximate linear algebra support.

*I agree: semigoups like lattices are everywhere. Then there could be a uniform treatment of linear algebra, polynomial equations, operator algebra, etc.*

MAGMA is an example of a language which embraced mathematical structure. MitchellNCharity 23:16, 14 November 2006 (UTC)

- Aldor/Axiom may be a place to look for a good type class hierarchy

- Elements of Programming, Chapter 5