# The bindings-levmar package

The Levenberg-Marquardt algorithm is an iterative technique that finds a local minimum of a function that is expressed as the sum of squares of nonlinear functions. It has become a standard technique for nonlinear least-squares problems and can be thought of as a combination of steepest descent and the Gauss-Newton method. When the current solution is far from the correct one, the algorithm behaves like a steepest descent method: slow, but guaranteed to converge. When the current solution is close to the correct solution, it becomes a Gauss-Newton method.

Both unconstrained and constrained (under linear equations and box constraints) Levenberg-Marquardt variants are included. All functions have Double and Float variants.

See: http://www.ics.forth.gr/~lourakis/levmar/

Note that the included C library is lightly patched to make it pure. This way the functions can be used inside unsafePerformIO.

A note regarding the license:

All files EXCEPT those in the levmar-2.4 directory fall under the BSD3 license. The levmar C library, which is bundled with this binding, falls under the GPL. If you build a program which is linked with this binding then it is also linked with levmar. This means such a program can only by distributed under the terms of the GPL.

## Properties

Versions | 0.1, 0.1.0.1, 0.1.1, 0.1.1.1, 0.2.0.1, 1.0, 1.0.0.1, 1.0.0.2, 1.1, 1.1.0.1, 1.1.0.2, 1.1.0.3, 1.1.0.4 |
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Dependencies | base (>=3 && <4.2) [details] |

License | OtherLicense |

Copyright | (c) 2009 Roel van Dijk & Bas van Dijk |

Author | Roel van Dijk & Bas van Dijk |

Maintainer | vandijk.roel@gmail.com, v.dijk.bas@gmail.com |

Category | numerical |

Source repository | head: darcs get http://code.haskell.org/bindings-levmar |

Uploaded | Mon Sep 14 09:25:51 UTC 2009 by RoelVanDijk |

Distributions | NixOS:1.1.0.4 |

Downloads | 4635 total (1081 in the last 30 days) |

Rating | (no votes yet) [estimated by rule of succession] |

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Status | Docs uploaded by user Build status unknown [no reports yet] Hackage Matrix CI |

## Downloads

- bindings-levmar-0.1.0.1.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)