The bed-and-breakfast package

[ Tags: library, linear-algebra, math, mit, numeric ] [ Propose Tags ]

Efficient Matrix operations in 100% Haskell.

This library uses boxed and unboxed arrays in the ST monad, in order to achieve efficiency.


[Skip to Readme]

Properties

Versions 0.1, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.2, 0.2.1, 0.2.2, 0.2.3, 0.3, 0.3.1, 0.3.2, 0.4, 0.4.1, 0.4.2, 0.4.3
Change log CHANGES.md
Dependencies array (>=0.4), base (>=4.5 && <4.7), binary (>=0.5), deepseq (>=1.3), template-haskell (>=2.7) [details]
License MIT
Author Julian Fleischer <julian.fleischer@fu-berlin.de>
Maintainer Julian Fleischer <julian.fleischer@fu-berlin.de>
Category Numeric, Math, Linear Algebra
Home page https://hackage.haskell.org/package/bed-and-breakfast
Source repository head: git clone https://github.com/scravy/bed-and-breakfast.git
Uploaded Fri Jan 17 15:40:53 UTC 2014 by JulianFleischer
Updated Sun May 3 12:21:47 UTC 2015 by AdamBergmark to revision 1
Distributions NixOS:0.4.3
Downloads 4581 total (142 in the last 30 days)
Rating (no votes yet) [estimated by rule of succession]
Your Rating
  • λ
  • λ
  • λ
Status Docs available [build log]
Successful builds reported [all 1 reports]
Hackage Matrix CI

Modules

[Index]

Downloads

Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.

Maintainer's Corner

For package maintainers and hackage trustees


Readme for bed-and-breakfast-0.4.3

[back to package description]

bed-and-breakfast

Matrix operations in 100% pure Haskell.

Bed and Breakfast is a linear algebra library written in Haskell. It provides fast matrix operations like finding the determinant or the inverse of a matrix.

Example (GHCi Session)

*Numeric.Matrix> let m = fromList [[0,3,2],[5,6,10],[4,3,2.0]] :: Matrix Double
*Numeric.Matrix> inv m
Just  -0.2499999999999999  0.0  0.25
0.4166666666666667  -0.11111111111111112  0.1388888888888889
-0.12500000000000006  0.16666666666666669  -0.20833333333333334

*Numeric.Matrix> let m = fromList [[0,3,2],[5,6,10],[4,3,2.0]] :: Matrix Rational
*Numeric.Matrix> inv m
Just  (-1) % 4  0 % 1  1 % 4
5 % 12  (-1) % 9  5 % 36
(-1) % 8  1 % 6  (-5) % 24

Example (with Template Haskell Syntactic Sugar)

{-# LANGUAGE Haskell2010, TemplateHaskell, QuasiQuotes #-}

import Numeric.Matrix
import Numeric.Matrix.Sugar

m :: Matrix Double
m = [dMatrix| 20   30 40
              40.5 71 23
              20   20 27 |]

mInv = maybe (error "not invertible") id $ inv m