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This package supplies a set of functions that find the roots of polynomials. Polynomials up to the quartic may be solved directly by numerical formulae. Polynomials of fifth and higher powers will be solved by an iterative method, as there are no general solutions for fifth and higher powers. The linear, quadratic, cubic, and quartic *_roots() functions all expect to have a non-zero value for the $a term. If the constant term is zero then the first value returned in the list of answers will always be zero, for all functions.

This module is an extension to the Math::Symbolic module. A basic familiarity with that module is required. The Math::Symbolic::Custom::Pattern module implements pattern matching routines on Math::Symbolic trees. The patterns itself are constructed from Math::Symbolic trees with just a few variables which have a special meaning. The module provides two interfaces. You can use the new() and match() methods this class provides, or you can use the to_pattern() and is_of_form() methods on any Math::Symbolic tree. (Exported by the Math::Symbolic::Custom::Pattern::Export module. Refer to that module for details on is_of_form().)

The cdecimal is a fast drop-in replacement for the decimal module in Python's standard library. Both modules provide complete implementations of the General Decimal Arithmetic Specification. Typical performance gains are between 30x for I/O heavy benchmarks and 80x for numerical programs. In a database benchmark, cdecimal exhibits a speedup of 12x over decimal.py. decimal cdecimal speedup pi 42.75s 0.58s 74x telco 172.19s 5.68s 30x psycopg 3.57s 0.29s 12x All Python versions from 2.5 up to 3.2 are supported. For the few remaining differences, read the cdecimal documentation. cdecimal has been included in Python-3.3.

TetGen is a program for generating tetrahedral meshes for arbitrary 3D domains. The main purpose of TetGen is to create high-quality tetrahedral meshes for solving partial differential equations using finite element and finite volume methods. This program, based on Delaunay methods, currently generates meshes including exact constrained Delaunay tetrahedralizations and quality (conforming Delaunay) meshes. For a 3D point set, it generates its exact Delaunay tetrahedralization and convex hull as well. The program is written in ANSI C++. It is highly portable, it should be very easy to compile and run on all major computer systems. It can be also used as a library embedded into other applications.

Yacas (Yet Another Computer Algebra System) is a small and highly flexible general-purpose computer algebra language. The syntax uses a infix-operator grammar parser. The distribution contains a small library of mathematical functions, but its real strength is in the language in which you can easily write your own symbolic manipulation algorithms. The core engine supports arbitrary precision arithmetic (although it can optionally be linked with the library "libgmp3") and is able to execute symbolic manipulations on various mathematical objects by following user-defined rules.

From README: Aclgen is a tool to create minimal length ip access lists and aggregated routing tables primarily for Cisco routers. Aclgen is fast. It takes only 15 seconds to create a 17000 line long access list for some 44000 entries of my routing table. Aclgen is flexible. It accepts various input formats and you can specify any output format by a printf like format-string. Aclgen is intended to use in large scripts creating router configuration from different databases. Any contribution is welcome. Send me your script using aclgen. I'll bundle it with the program.

LifeLines is an advanced genealogical system. You can store any kind and any amount of data in a LifeLines database, and you can process and generate output based on that data in any way and in any format. LifeLines supports GEDCOM; it imports and exports GEDCOM data. LifeLines has a unique approach to report generation. LifeLines has no built-in reports. Instead all reports are generated using report programs that are written in a report programming language. Because of its flexibility and programmability, LifeLines is frequently used for genealogy applications on the World Wide Web.

CDCollect is a CD/DVD catalog application for gnome. It's goal is to be able to catalog your entire CD collection allowing for searches of your CD/DVD files with a clean and simple interface. Features: * Easy to use interface. * Allow the use of plugins (external programs) to collect information for each file of a CD in your catalog. * Searches can be performed on CDs or files in the collection. * It also catalogs compressed files (using external programs such as unzip, unrar, etc.).

This module allows you to convert the full name for a countries administrative region to the code commonly used for postal addressing. The reverse lookup can also be done. Sub country codes are defined in "ISO 3166-2:1998, Codes for the representation of names of countries and their subdivisions". Sub countries are termed as states in the US and Australia, provinces in Canada and counties in the UK and Ireland. Additionally, names and codes for all sub countries in a country can be returned as either a hash or an array. Seamus Venasse <svenasse@polaris.ca>

AcidRip is a Gtk2::Perl application for ripping and encoding DVD's. It neatly wraps MPlayer and MEncoder, seeing as MPlayer is by far the best bit of video playing kit around for Linux (and FreeBSD). As well as creating a simple Graphical Interface for those scared of getting down and dirty with MEncoders command line interface, It also automates the process in a number of ways: o Parses DVD into contents tree o Finds longest title o Calculate video bitrate for given filesize o Finds black bands and crops them o Gives suggestions for improved performance