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PSPP is a program for statistical analysis of sampled data. It interprets commands in the SPSS language and produces tabular output in ASCII or PostScript format. PSPP development is ongoing. It already supports a large subset of SPSS's transformation language. Its statistical procedure support is currently limited, but growing.

pure-mpfr makes the MPFR multiprecision floats (henceforth referred to as mpfr numbers or values) available in Pure, so that they work with the other types of Pure numbers in an almost seamless fashion.

pure-rational provides additional operations on the rational number type provided by the math.pure module in the standard library.

Plots data on map projections (with continental and political boundaries).

SFST is a toolbox for the implementation of morphological analysers and other tools which are based on finite state transducer technology. The SFST tools comprise: -- a compiler which translates transducer programs into minimised transducers -- interactive and batch-mode analysis programs -- tools for comparing and printing transducers -- an efficient C++ transducer library Features: -- easy to learn for users who are familiar with grep, sed, or Perl. -- efficient implementation in C++ -- supports -- a wide range of transducer operations -- UTF-8 character coding -- weighted transducers (basic functionality only)

Topaz is a graph plotting system for scientists and engineers. 1. Topaz has a powerful graph expression and functions such as least square method. Topaz provides almost all functions that you need to make a 2D scattering graph. 2. Topaz has a polished character based user interface. 3. Topaz has powerful macro language of "Topaz script", which is like Perl. You can expand topaz itself or you can perform batch jobs using topaz scripts. Topaz official Web Page.

This is a Ruby library for mathematical (algebraic) computations. Our purpose is to express mathematical objects naturally in Ruby. Though it does not operate fast, we can see the algorithm of the mathematical processing not in a black box but in scripts. Things Ruby/Algebra offers include the following: - One-variate polynomial o Fundamental operations (addition, multiplication, quotient/remainder, ...) o Factorization - Multi-variate polynomial o Fundamental operations (addition, multiplication, ...) o Creating Groebner-basis, quotient/remainder by Groebner-basis. - Algebraic systems o Creating quotient fields o Creating residue class fields o Operating matrices

Implementation of mathematical expression parsing in Ruby including support for reverse polish notation (RPN).

Ruby bindins for Fast Fourier Transforms by using FFTW Ver.3.

X-12-ARIMA is seasonal adjustment software produced, distributed, and maintained by the U.S. Census Bureau, where it is used for all official seasonal adjustments.