# Vector-space

### From HaskellWiki

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* Get the code repository: <tt>darcs get http://code.haskell.org/vector-space</tt>. |
* Get the code repository: <tt>darcs get http://code.haskell.org/vector-space</tt>. |
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− | * Some blog posts on [http://conal.net/blog/tag/vector-spaces/ vector spaces], [http://conal.net/blog/tag/linear-maps/ linear maps], and [http://conal.net/blog/tag/derivatives/ derivatives]. |
+ | * Some blog posts on [http://conal.net/blog/tag/vector-spaces/ vector spaces], [http://conal.net/blog/tag/linear-map/ linear maps], and [http://conal.net/blog/tag/derivatives/ derivatives]. |

## Revision as of 21:14, 30 November 2008

## Abstract

**vector-space** is library that provides provides classes and generic operations for additive groups, vector spaces and affine spaces. There are also vector space bases and a general notion of linear maps (linear transformations).
The library also defines a type of infinite towers of generalized derivatives.
A generalized derivative is a linear map rather than one of the usual concrete representations (scalars, vectors, matrices, ...).

The representation of linear maps uses MemoTrie.

*Warning*: Starting with version 0.3, this package depends on type families working fairly well, and requires ghc version at least 6.9.
Version 0.5 requires ghc 6.10 or better.

Besides this wiki page, here are more ways to find out about vector-space:

- Visit the Hackage page for library documentation and to download & install.
- Or install with
`cabal install vector-space`. - Get the code repository:
`darcs get http://code.haskell.org/vector-space`. - Some blog posts on vector spaces, linear maps, and derivatives.

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