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This module includes cyrillic string conversion functions from one and to another charset, to upper and to lower case without locale switching. Also included single-byte charsets detection routine. It is easy to add new code pages. For this purpose it is necessary only to add appropriate string of a code page.

GetDP is a general finite element solver using mixed elements to discretize de Rham-type complexes in one, two and three dimensions. The main feature of GetDP is the closeness between the input data defining discrete problems (written by the user in ASCII data files) and the symbolic mathematical expressions of these problems.

Ghemical is a computational chemistry software package, Ghemical relies on external code to provide the quantum-mechanical calculations. Semi-empirical methods MNDO, MINDO/3, AM1 and PM3 come from the MOPAC7 package, and are included in the source distribution. The MPQC package (GNU GPL) is used to provide ab initio methods.

The ECMWF GRIB API is an application program interface accessible from C, FORTRAN and Python programs developed for encoding and decoding WMO FM-92 GRIB edition 1 and edition 2 messages. A useful set of command line tools is also provided to give quick access to GRIB messages.

Libxc is library of exchange-correlation functionals for density-functional theory. The aim is to provide a portable, well tested and reliable set of exchange and correlation functionals that can be used by all the ETSF codes and also other codes. In libxc you can find different types of functionals: LDA, GGA, hybrids, and mGGA (experimental).

ObsPy is an open-source project dedicated to provide a Python framework for processing seismological data. It provides parsers for common file formats, clients to access data centers and seismological signal processing routines which allow the manipulation of seismological time series (see Beyreuther et al. 2010, Megies et al. 2011). The goal of the ObsPy project is to facilitate rapid application development for seismology.

Chemistr-Mol is a toolkit includes basic objects and methods to describe molecules. It consists of several modules: Chemistry::Mol, Chemistry::Atom, Chemistry::Bond, and Chemistry::File. They are the core modules of the PerlMol toolkit, see: http://www.perlmol.org/.

Geo::Coordinates::Converter is a simple converter of geo coordinates, the format and datum of geo coordinates are simply converted. when it is insufficient in the coordinate system and the format of the standard, it is possible to add it easily.

The sigrok project aims at creating a portable, cross-platform, Free/Libre/Open-Source signal analysis software suite that supports various device types, such as logic analyzers, MSOs, oscilloscopes, multimeters, LCR meters, sound level meters, thermometers, hygrometers, anemometers, light meters, DAQs, dataloggers, function generators, spectrum analyzers, power supplies, GPIB interfaces, and more.

Modular toolkit for Data Processing (MDP) is a Python data processing framework. Implemented algorithms include: Principal Component Analysis (PCA), Independent Component Analysis (ICA), Slow Feature Analysis (SFA), Independent Slow Feature Analysis (ISFA), Growing Neural Gas (GNG), Factor Analysis, Fisher Discriminant Analysis (FDA), Gaussian Classifiers, and Restricted Boltzmann Machines.