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From <http://cran.R-project.org/doc/FAQ/R-FAQ.html#What-is-R_003f>: R is a system for statistical computation and graphics. It consists of a language plus a run-time environment with graphics, a debugger, access to certain system functions, and the ability to run programs stored in script files. The core of R is an interpreted computer language which allows branching and looping as well as modular programming using functions. Most of the user-visible functions in R are written in R. It is possible for the user to interface to procedures written in the C, C++, or FORTRAN languages for efficiency. The R distribution contains functionality for a large number of statistical procedures. Among these are: linear and generalized linear models, nonlinear regression models, time series analysis, classical parametric and nonparametric tests, clustering and smoothing. There is also a large set of functions which provide a flexible graphical environment for creating various kinds of data presentations. Additional modules ("add-on packages") are available for a variety of specific purposes.

Asignify tool is heavily inspired by signify used in OpenBSD. However, the main goal of this project is to define high level API for signing files, validating signatures and encrypting using public keys cryptography. Asignify is designed to be portable and self-contained with zero external dependencies. It uses blake2b as the hash function and ed25519 implementation from tweetnacl. Key features: - Zero dependencies (libc and C compiler are likely required though), so it could be easily used in embedded systems. - Modern cryptography primitives (ed25519, blake2 and sha512 namely). - Ability to encrypt files with the same keys using curve25519 based cryptobox. - Protecting secret keys by passwords using PBKDF2-BLAKE2 routine. - Asignify can convert ssh ed25519 private keys to the native format and verify signatures using just ssh ed25519 public keys (without intermediate conversions). - Asignify provides high level API for application developers for signing, verifying, encrypting and keys generation. - All keys, signatures and encrypted files contain version information allowing to change cryptographical primitives in the future without loosing of backward compatibility.

cloc counts blank lines, comment lines, and physical lines of source code in many programming languages. cloc contains code from David Wheeler's SLOCCount and Damian Conway and Abigail's Perl module Regexp::Common.

Bison is a tool used to write parsers, such as the parser for GNU cc. It is similar to Yacc, which is included in the base FreeBSD system. The main difference between Bison and Yacc that I know of is that Bison supports the @N construction, which gives you access to the starting and ending line number and character number associated with any of the symbols in the current rule. Also, Bison supports the command `%expect N' which says not to mention the conflicts if there are N shift/reduce conflicts and no reduce/reduce conflicts. The differences in the algorithms stem mainly from the horrible kludges that Johnson had to perpetrate to make Yacc fit in a PDP-11. Also, Bison uses a faster but less space-efficient encoding for the parse tables (see Corbett's PhD thesis from Berkeley, "Static Semantics in Compiler Error Recovery", June 1985, Report No. UCB/CSD 85/251), and more modern technique for generating the lookahead sets. (See "Efficient Construction of LALR(1) Lookahead Sets" by F. DeRemer and A. Pennello, in ACM TOPLS Vol 4 No 4, October 1982. Their technique is the standard one now.)

The game is very simple. There is an 8x8 array of jewels of 7 types. You need to get 3 or more in a row horizontally or vertically in order to score points. You can swap any two jewels that are next to each other up and down or left and right. The mechanic is to click the mouse on the first one, then drag in the direction to switch with. Then let up on the mouse button, but this last isn't so critical. Jewels can only be swapped if after the swap there is at least one 3 or more in a row set created. Otherwise the jewels return to their original position. There is a clock shown on the left. When it counts down to 0 the game is over. You will probably be able to enter your name into the high score table. Hit enter when done. Hit F1 or spacebar to start a new game, or ESC to exit. This game makes use of OpenGL. Without an OpenGL implementation it won't work. If you only have software rendering you can still play but the frame rate will be lower. The GLX module must be present as well.

Darktable is a virtual lighttable and darkroom for photographers: an open source photography workflow application and raw image developer. It manages digital negatives in a database and lets one view them through a zoomable lighttable. It also enables one to develop raw images and enhance them. Darktable tries to fill the gap between many excellent existing free raw converters and image management tools (such as UFRaw or F-Spot). The user interface is built around efficient caching of image metadata and mipmaps, all stored in a database. The user will always be able to interact, even if the full resolution image is not yet loaded. All editing is fully non-destructive and only operates on cached image buffers for display. The full image is only converted during export. The frontend is written in Gtk+/Cairo, the database uses SQLite3, raw image loading is done using libraw and rawspeed, high-dynamic range and standard image formats such as JPEG are also supported. The core operates completely on floating point values, so darktable can not only be used for photography but also for scientifically acquired images or output of renderers (high dynamic range).

The purpose of this project is to develop a free (open source), platform independent alternative to Origin. QtiPlot is being actively improved, all your suggestions to our "wish to" list and all your contributions are most welcome! Features: * QtiPlot is fully scriptable via Python, which gives you the possibility to use powerfull existing scientific tools, such as SciPy * OpenGL based 3D Plotting * Publication quality 2D plots * Easy export of plots to vector formats (EPS, PS, PDF) and to other various image formats (BMP, JPG, PNG, TIFF etc ...) * Powerful and versatile spreadsheets and calculations in column-logic * Easy ASCII-Import/Export of single or multiple files * Linear and non-linear y=f(x) curve fitting and estimation of statistical errors of the fit-parameters * Multi-peak fitting with Gaussian and Lorentzian peak profiles * Data analysis: statistics, sorting, FFT, data smoothing (Savitzky-Golay, FFT smoothing, and moving window average), data filtering (low/high/band pass and band block filters), convolution/deconvolution, correlation, interpolation, numerical integration/differentiation, etc... * Matrices optimized for 3D plotting * Templates support: all the settings for plots (2D/3D), tables and matrixes can be saved to ASCII files and restored later on for a fast editing process * Project files based on folders, a powerful project explorer with extensive built-in features: drag and drop, searching facilities, etc...

Modern concurrency tools for Ruby. Inspired by Erlang, Clojure, Scala, Haskell, F#, C#, Java and classic concurrency patterns.

U-Boot loader for Wandboard Solo, Dual, and Quad. Install the u-boot.imx file onto the boot disk using: dd if=u-boot.imx of=/dev/whatever bs=1k oseek=1 conv=sync The U-Boot built by this port expects the first 1MB of the boot media to be reserved for the U-Boot executable and saved environment. The u-boot.imx file begins at an offset of 1K from the start of the boot disk. The U-Boot environment area begins at an offset of 512K. This version is patched so that: * ELF and API features are enabled to support ubldr. * A single U-Boot image supports Solo, Dual[lite], and Quad processors. * When the selected board has multiple SD or MMC devices available, the mmc0 device in U-Boot (and thus the disk0 device in loader(8)) will be whichever device U-Boot was loaded from by the ROM bootloader routines. The sources for this port were originally obtained from commit 87f595d1ee at https://github.com/TechNexion/U-Boot-edm/ which appears to be a slightly modified fork of the stock U-Boot 2013.10 release. As of this writing, the changes in this fork have not been rolled back into upstream U-Boot. For general information about U-Boot see WWW: http://www.denx.de/wiki/U-Boot

This Perl module calulates percentage points (5 significant digits) of the u (standard normal) distribution, the student's t distribution, the chi-square distribution and the F distribution. It can also calculate the upper probability (5 significant digits) of the u (standard normal), the chi-square, the t and the F distribution. These critical values are needed to perform statistical tests, like the u test, the t test, the F test and the chi-squared test, and to calculate confidence intervals. -Anton <tobez@FreeBSD.org>