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Cost Accounting Module - Python code module containing financial calculation functions for industrial cost analysis.
Early Math - Arithmetic practice program for 5-7 year olds.
FixedPoint.py - Python code module for fixed point decimal calculations.
fourier.py - Python code module to perform fourier transformations in python.
Fraction.py - Python code module enhancing the calculation and presentation of fractional calculations.
Functions for complex numbers - Return list of the n n'th roots of a complex number.
Gary Strangman's Python Modules - Statistical functions. [Open Source/GPL]
GMPY - Provides multiprecision arithmetic functionality to Python programmers. [Open Source, LGPL]
Mathter - Cross platform calculator. Able to use parenthesis and can cope with very larger numbers.[OpenSource/GPL]
MatPy - Matrix package for Python - Python package for numerical computation and plotting with a MatLab-like interface.
Multipack Home Page - Collection of FORTRAN routines interfaced with NumPy. Provides interactive data analysis environment comparative to MATLAB, Octave, Scilab, etc. built on Python.
mxDateTime - Date and Time types for Python. [Open Source]
NURBS - Non Uniform Rational B-Splines - NURBS algorithms in use for naval architecture.
PyGiNaC - A Python interface to the C++ library GiNaC (an open framework for symbolic computation within the C++ programming language). [Open Source, LGPL]
pygsl - A Python interface for the GNU scientific library. [Open Source, GPL/LGPL]
Python Date Class: NormalDate - Dates and date calculations without excess baggage (time zones, daylight savings, leap seconds).
QuantLib - A free/open-source library for quantitative finance. [Open Source, BSD-like]
R/SPlus - Python interface to the R system for statistical computing and graphics. [Open Source, BSD-like]
ScientificPython - A collection of Python modules that are useful for scientific computing. [Open Source, LGPL]
SciPy - Open Source Library of Scientific Tools. SciPy supplements the popular Numeric module, gathering a variety of high level science and engineering modules together as a single package. Within SciPy are modules for graphics and plotting, optimization, integration, special functions, signal and image processing, genetic algorithms, ODE solvers, and others. [Open Source, BSD-like]