Indices Maths

Gnofract 4D is a free, open source program which allows anyone to create beautiful images called fractals. The images are automatically created by the computer based on mathematical principles. These include the Mandelbrot and Julia sets and many more. You don't need to do any math: you can... Platforms: *nix

ruby index/search is a general indexing framework for ruby. With it, you can create collections of documents, then index and search them. Currently, both inverted indexing and LSA indexing are supported, with rudimentary result clustering in the works. The indices may be marshalled out (with... Platforms: *nix

Armadillo is a C++ linear algebra library (matrix maths) aiming towards a good balance between speed and ease of use. Integer, floating point and complex numbers are supported, as well as a subset of trigonometric and statistics functions. Various matrix decompositions are provided through... Platforms: Mac

Admin is entirely written in Java. It uses Swing GUI Components and JDBC to connect to databases. It has been succesfully tested with MySQL, InstantDB, Oracle, Empress, and PostgreSQL. You can have a tree view of the RDBMS or pick a single instance to have a look at its metadata. It allows you... Platforms: *nix

Kitsune is a fun game where you have to solve all types of maths operations with numbers, similar to the TV program "Letters and Numbers." Kitsune shows you various digits at random, and your aim is to get a final figure via the four main operations of add, subtract, multiply and divide, before... Platforms: Windows

ProGuard is a free Java class file shrinker, optimizer, and obfuscator. ProGuard project can detect and remove unused classes, fields, methods, and attributes. It can then optimize bytecode and remove unused instructions. Finally, it can rename the remaining classes, fields, and methods using... Platforms: *nix

SQL::Translator::Manual is a Perl module that contains a manual for SQL translator. SYNOPSIS SQL::Translator (AKA "SQLFairy") is a collection of modules for transforming (mainly) SQL DDL files into a variety of other formats, including other SQL dialects, documentation, images, and code. In... Platforms: *nix

NPI is a simple calculator that supports Reverse Polish Notation, devised by Jan Lukasiewicz in the Twenties to allow evaluation of mathematical expressions without brackets. NPI calculator supports completion and command history. In the Twenties, Jan Lukasiewicz developed a system of formal... Platforms: *nix

SYNOPSIS use Math::MatrixReal; use Math::MatrixReal::Aug; These are certain extra methods for Math::MatrixReal, in the tradition of Math::MatrixReal::Ext1; $matrix1->augmentright($matrix2); Creates a new matrix of the form [$matrix1 $matrix2]. $matrix1 and $matrix2 must have the same... Platforms: *nix

Bit::Vector is an efficient bit vector, set of integers and "big int" math library. CLASS METHODS Version $version = Bit::Vector->Version(); Word_Bits $bits = Bit::Vector->Word_Bits(); # bits in a machine word Long_Bits $bits = Bit::Vector->Long_Bits(); # bits in an unsigned long... Platforms: *nix

Geography::Countries is a Perl module with 2-letter, 3-letter, and numerical codes for countries. SYNOPSIS use Geography::Countries; $country = country DE; # Germany @list = country 666; # (PM, SPM, 666, # Saint Pierre and Miquelon, 1) This module maps country names, and their 2-letter,... Platforms: *nix

IDX-DocBook2LaTeX is a LaTeX stylesheet for DocBook XML. It is written in Perl, using the XML::XPathScript package from AxKit. It features the ability to handle tables, indices, figures, footnotes, and more. The XSLT-like templating philosophy built into XPathScript makes it easy to extend.... Platforms: *nix

BeanCounter enables stockmarket data analysis and performance evaluation. Ever wondered what happened to your portfolio on a day the market moved 500 points? Ever wondered what your portfolio returned over the last (odd and arbitrary) period? Ever wondered what the Value-at-Risk (VaR) was? Ever... Platforms: *nix

Msql is a Perl interface to the mSQL and mysql databases. SYNOPSIS use Msql; $dbh = Msql->connect($host); $dbh = Msql->connect($host, $database); or use Mysql; $dbh = Mysql->connect(undef, $database, $user, $password); $dbh = Mysql->connect($host, $database, $user, $password); or... Platforms: *nix

LiteSQL is a C++ library that integrates C++ objects tightly to relational database and thus provides an object persistence layer. LiteSQL supports SQLite3, PostgreSQL and MySQL as backends. LiteSQL creates tables, indexes and sequences to database and upgrades schema when needed. In addition to... Platforms: *nix

DictD++ is a server that implements DICT protocol. The DICT protocol specifies the common way for clients to access dictionary information over network. Although DICT protocol is quite powerful, on practice it seems that more limited (but easier) solutions are typically implemented, most often... Platforms: *nix

Data::Page is a Perl module that helps when paging through sets of results. SYNOPSIS use Data::Page; my $page = Data::Page->new(); $page->total_entries($total_entries); $page->entries_per_page($entries_per_page); $page->current_page($current_page); print " First page: ",... Platforms: *nix

PDL::Primitive Perl module contains primitive operations for pdl. This module provides some primitive and useful functions defined using PDL::PP and able to use the new indexing tricks. See PDL::Indexing for how to use indices creatively. For explanation of the signature format, see PDL::PP.... Platforms: *nix

PDL::NiceSlice Perl module contains a nicer slicing syntax for PDL. SYNOPSYS use PDL::NiceSlice; $a(1:4) .= 2; # concise syntax for ranges print $b((0),1:$end); # use variables in the slice expression $a->xchg(0,1)->(($pos-1)) .= 0; # default method syntax $idx = long 1, 7, 3, 0; # a... Platforms: *nix

sqlt-diff is a Perl module that can find the differences b/w two schemas. SYNOPSIS For help: sqlt-diff -h|--help For a list of all valid parsers: sqlt -l|--list To diff two schemas: sqlt-diff [options] file_name1=parser file_name2=parser Options: -d|--debug Show debugging info... Platforms: *nix