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From the README: calctool - README - November 1989. This is V2.4 of a simple desktop calculator. This version works under X11, XView and dumb tty terminals. It is almost visually identical to V2.1 which was released in August 1988, but internally most of the code has been reworked to include a level of graphics abstraction, to make porting this code to other window systems a trivial task. V2.4 includes display in scientific notation, color icons, a correct factorial function and fixes for a few minor bugs. It introduces the new versions for XView, X11, MGR and dumb terminals. New functions include hyperbolic and inverse hyperbolic trigonometrical functions, register exchange, constants and the input of numbers in exponential notation. You can also have a .calctoolrc file in your home directory, which can define upto ten new values for constants, and ten function definitions which are used in conjunction with the FUN key. (port maintained by ssedov@mbsd.msk.ru)

Gri is a language for scientific graphics applications. By 'language' I mean that it is a command-driven application, as opposed to a click/point application. It is analogous to latex or tex, and shares the property that extensive power is the reward for tolerating a modest learning curve. Gri output is in industry-standard PostScript, suitable for incorporation in documents prepared by various text processors. Gri can make x-y graphs, contour-graphs, and image graphs. In addition to high-level capabilities, it has enough low-level capabilities to allow users to achieve a high degree of customization. Precise control is extended to all aspects of drawing, including line-widths, colors, and fonts. Text includes a subset of the tex language, so that it is easy to incorporate Greek letters and mathematical symbols in labels.

Suppose you flip a coin 100 times, and it turns up heads 70 times. Is the coin fair? Suppose you roll a die 100 times, and it shows 30 sixes. Is the die loaded? In statistics, the chi-square test calculates "how random" a series of numbers is. But it doesn't simply say "yes" or "no". Instead, it gives you a confidence interval, which sets upper and lower bounds on the likelihood that the variation in your data is due to chance. See the examples below. There's just one function in this module: chisquare(). Instead of returning the bounds on the confidence interval in a tidy little two-element array, it returns an English string. This was a deliberate design choice---many people misinterpret chi-square results, and the string helps clarify the meaning. -Anton <tobez@FreeBSD.org>

SPOOLES is a library for solving sparse real and complex linear systems of equations, written in the C language using object oriented design. At present, there is the following functionality: 1. Compute multiple minimum degree, generalized nested dissection and multisection orderings of matrices with symmetric structure. 2. Factor and solve square linear systems of equations with symmetric structure, with or without pivoting for stability. The factorization can be symmetric LDLT, Hermitian LDLH, or nonsymmetric LDU. A direct factorization or a drop tolerance factorization can be computed. The factors and solve can be done in serial mode, multithreaded with Solaris or POSIX threads, or with MPI. 3. Factor and solve overdetermined full rank systems of equations using a multifrontal QR factorization, in serial or using POSIX threads. 4. Solve square linear systems using a variety of Krylov iterative methods. The preconditioner is a drop tolerance factorization, with or without pivoting for stability.

Tablix is a powerful free software kernel for solving general timetabling problems. It uses a coarse-grained parallel genetic algorithm in combination with other techniques to construct sensible timetables from XML formatted problem descriptions. Tablix can run on a single host as well as on a heterogeneous parallel virtual machine using PVM3. Tablix kernel supports a very wide range of timetabling problems, from high school timetabling to barge scheduling. A number of timetable constraints are already implemented in the default installation. Because of kernel's modular design it is easy to add custom timetable constraints and/or modify existing ones. Kernel modules are written in C. Extensive API documentation is available on the internet and in the source distribution.

This implementation of the Unix write program adds many nice features while remaining close to the standard Unix program in spirit. It has been heavily used on M-Net since 1985 and on Grex since 1991, as well as a few other systems. It is a ground-up reimplementation using no proprietary code. It's available under a Berkeley-style license (no charge, no restriction on commercial use, just don't take my name off of it). The current version is fairly portable. Orville write was written for use on M-Net and Grex, both public access Unix systems in Ann Arbor. As such, many of the features are designed to support a system featuring a delicate mix of novice users and hostile pranksters, plus a lot of people who just want to talk. It's user interface is pretty much identical to the normal write program, but it offers many extensions and improvements.

szap-s2 is a command line channel zapping (i.e. tuning) utility similar to szap but including support for S2API a.k.a. DVB API version 5, which supports DVB-S2. When using szap-s2, one instructs it to change the channel to one of a list of channels supplied in a channels.conf type file. There is no manpage yet, but you can run szap-s2 without args to get a usage message. location of channel list file is ~/.szap/channels.conf one line of the szap channel file has the following format: name:frequency_MHz:polarization[coderate][delivery][modulation][rolloff]:sat_no:symbolrate:vpid:apid:service_id one line of the VDR channel file has the following format: name:frequency_MHz:polarization[coderate][delivery][modulation][rolloff]:sat_no:symbolrate:vpid:apid:tpid:?:service_id:?:?:?

NetSPoC is a tool for security managment of large computer networks with different security domains. It generates configuration files for packet filters controlling the borders of security domains. NetSPoC provides its own language for describing security policy and topology of a network. The security policy is a set of rules that state which packets are allowed to pass the network and which not. NetSPoC is topology aware: a rule for traffic from A to B is automatically applied to all managed packet filters on the path from A to B. Currently NetSPoC generates ACLs and static routing entries for Cisco routers and PIX firewalls. Support for network address translation and IPSec has not been implemented yet.

Google::SAML::Response can be used to generate a signed XML document that is needed for logging your users into Google using SSO. You have some sort of web application that can identify and authenticate users. You want users to be able to use some sort of Google service such as Google mail. When using SSO with your Google partner account, your users will send a request to a Google URL. If the user isn't already logged in to Google, Google will redirect him to a URL that you can define. Behind this URL, you need to have a script that authenticates users in your original framework and generates a SAML response for Google that you send back to the user whose browser will then submit it back to Google. If everything works, users will then be logged into their Google account and they don't even have to know their usernames or passwords.

This is a pure-python TCP load balancer. It takes inbound TCP connections and connects them to one of a number of backend servers. Features: - async i/o based, so much less overhead than fork/thread based balancers. Can use either twisted or python's standard asyncore library (twisted is recommended, and asyncore support will be removed in a future version). - Multiple scheduling algorithms (random, round robin, leastconns, leastconns+roundrobin) - If a server fails to answer, it's removed from the pool - the client that failed to connect gets transparently failed over to a new host. - XML based configuration file (see a sample) - separate management thread that periodically re-adds failed hosts if they've come back up. - optional builtin webserver for admin (sample of the running screen) - webserver has methods suitable for both interactive and automated systems