Ports Search

librsb is a library for sparse matrix computations featuring the Recursive Sparse Blocks (RSB) matrix format. This format allows cache efficient and multi-threaded (that is, shared memory parallel) operations on large sparse matrices. The most common operations necessary to iterative solvers are available, e.g.: matrix-vector multiplication, triangular solution, rows/columns scaling, diagonal extraction / setting, blocks extraction, norm computation, formats conversion. The RSB format is especially well suited for symmetric and transposed multiplication variants. Most numerical kernels code is auto generated, and the supported numerical types can be chosen by the user at build time. librsb implements the Sparse BLAS standard, as specified in the BLAS Forum documents.

ised is a command-line tool for generating number sequences and arithmetic evaluation. Unlike big gui-based software (e.g. Mathematica, Derive, Matlab, Octave,...) it is intended for use in shell scripting, together with gnu core utilities. Its main advantage is that all functions are generalized to operate on one-dimensional arrays. It can be used for loop indexing (much like seq), line-by-line arithmetic processing of files, floating point math for shells that don't support it natively, or interactively, as extended calculator.

NetworkX (NX) is a Python package for the creation, manipulation, and study of the structure, dynamics, and functions of complex networks. Features: * Includes standard graph-theoretic and statistical physics functions * Easy exchange of network algorithms between applications, disciplines, and platforms * Includes many classic graphs and synthetic networks * Nodes and edges can be "anything" (e.g. time-series, text, images, XML records) * Exploits existing code from high-quality legacy software in C, C++, Fortran, etc. * Open source (encourages community input) * Unit-tested Additional benefits due to Python: * Allows fast prototyping of new algorithms * Easy to teach * Multi-platform * Allows easy access to almost any database

The Free Software Foundation's "units" unit conversion and calculation utility. GNU units converts quantities expressed in various scales to their equivalents in other scales. Units can only handle multiplicative scale changes. For example, it cannot convert Celsius to Fahrenheit but it can convert temperature differences between those temperature scales. The units are defined externally in an extensive, well annotated data file that defines over 2000 units. You can also provide your own data file. Note that this port will install the utility with a 'g' prefix, e.g. gunits, but the texinfo documentation will refer to it without the 'g' prefix.

PFinger consists of server and client for the standard finger service. The PFinger server is a replacement for the standard Unix finger server. It also implements the pip-protocol which could become the finger v2 protocol. Its advantage over existing finger servers like GNU Finger or similar enhanced Finger servers are its configurability, compatibility and security (e.g. the server does not run as root). The Pfinger client can be used for several tasks: First it provides an easy way to edit the information the PFinger Server gives out about you. Then it can be used as graphical version of the standard finger client to monitor who is online.

Gwyddion is a modular SPM (Scanning Probe Microsopy) data visualization and analysis tool written with Gtk+. It can be used for all most frequently used data processing operations including: leveling, false color plotting, shading, filtering, denoising, data editing, integral transforms, grain analysis, profile extraction, fractal analysis, and many more. The program is primarily focused on SPM data analysis (e.g. data obtained from AFM, STM, NSOM, and similar microscopes). However, it can also be used for analysis of SEM (Scanning Electron Microscopy) data or any other 2D data.

PyTidyLib is a Python package that wraps the HTML Tidy library. This allows you, from Python code, to "fix" invalid (X)HTML markup. Some of the library's many capabilities include: * Clean up unclosed tags and unescaped characters such as ampersands * Output HTML 4 or XHTML, strict or transitional, and add missing doctypes * Convert named entities to numeric entities, which can then be used in XML documents without an HTML doctype. * Clean up HTML from programs such as Word (to an extent) * Indent the output, including proper (i.e. no) indenting for pre elements, which some (X)HTML indenting code overlooks.

Strip whitespace and comments from JavaScript code

Lexical::Import allows functions and other items, from a separate module, to be imported into the lexical namespace (as implemented by Lexical::Var), when the exporting module exports non-lexically to a package in the traditional manner. This is a translation layer, to help code written in the new way to use modules written in the old way. A lexically-imported item takes effect from the end of the definition statement up to the end of the immediately enclosing block, except where it is shadowed within a nested block. This is the same lexical scoping that the my, our, and state keywords supply. Within its scope, any use of the single-part name of the item (e.g., "$foo") refers directly to that item, regardless of what is in any package. Explicitly package-qualified names (e.g., "$main::foo") still refer to the package. There is no conflict between a lexical name definition and the same name in any package. This mechanism only works on Perl 5.11.2 and later. Prior to that, it is impossible for lexical subroutine imports to work for bareword subroutine calls. (See "BUGS" in Lexical::Var for details.) Other kinds of lexical importing are possible on earlier Perls, but because this is such a critical kind of usage in most code, this module will ensure that it works, for convenience. If the limited lexical importing is desired on earlier Perls, use Lexical::Var directly.

This perhaps ridiculous-seeming module was created to test routines that manipulate random numbers by providing a known output from rand. Given a list of seeds with srand, it will return each in turn. After seeded random numbers are exhausted, it will always return 0. Seed numbers must be of a form that meets the expected output from rand as called with no arguments -- i.e. they must be between 0 (inclusive) and 1 (exclusive). In order to facilitate generating and testing a nearly-one number, this module exports the function oneish, which returns a number just fractionally less than one. Depending on how this module is called with use, it will export rand to a specified package (e.g. a class being tested) effectively overriding and intercepting calls in that package to the built-in rand. It can also override rand in the current package or even globally. In all of these cases, it also exports srand and oneish to the current package in order to control the output of rand. Alternatively, this module can be used to generate objects, with each object maintaining its own distinct seed array.