Free critical thinking software for linux

Thinking Rock project is a Java based software application for collecting and processing your thoughts, following the GTD methodology.
Thinking Rock allows you to collect your thoughts and process them into actions, projects, information or future possibilities. Actions can be done by you, delegated to someone else or scheduled for a particular date. Projects can be organised with ordered actions and sub-projects. You can review all of your actions, projects and other information quickly and easily to see what you need to do or to choose what you want to do at a particular time.
Main features:
- It will help you to store in one safe place all the things you have to do or would like to do one day;
- Unlike many task management applications, Thinking Rock lets you to group your actions in projects and sub-projects;
- It gets you moving on your thoughts by encouraging you to think of the next physical action to take;
- It is simple, easy (help documentation provided) and quick to use ;
- We provide free customer support;
- The data file is separate so you can have the application installed on your home computer and at work, and transfer the small data file between computers;
- It is multi-platform: use it on Linux, Machintosh, or Windows;
- Its free.

hcritsec is a C++ class for Critical Sections in programs.
hcritsec can be used to define a critical section in a program. It can be used in a recursive way. So functions that are nested can call the enter and leave functions recursively (see section Synopsys).
A critical section class is typically shared between threads, or is part of an object or variable that is shared between threads.
It can be used to gain exclusive access to shared resources or variables.
Synopsys
(...)
void thread_class::calc(int *t)
{
S->enter();
*t+=1;
S->leave();
}
void thread_class::run(void)
{
for(i=0;ienter();
calc(t);
S->leave();
}
}
(...)
int main()
{
hcrisec S;
int t=0;
thread_class t1(&S,&t),t2(&s,&t)
t1.start();
t2.start();
thread_class::join(t1,t2);
return 0;
}
Restrictions
- You may not copy an object of class critsec. Allways use a pointer to share the object between threads.
- If hcritsec throws a fatal error, this will allways be of type std::string.

Sokoban was invented in Japan and the original program was written by Hiroyuki Imabayashi. Sokoban is copyright (c) 1982 Thinking Rabbit Inc. Japan.
"Sokoban" means "warehouse keeper" in Japanese; the goal of the game is to push all the crates into the designated crate positions.
The levels provided are not my own, they are public domain.
Main features:
- "Unlimited" undo
- Mouse controls + path finding

XLogical project is a parallel thinking puzzle game with ray-traced graphics, music, and sound.

XLogical is a puzzle game based on an Amiga game developed by Rainbow Arts called Logical. It features ray-traced graphics, music, and sound effects. The game is addictive, requiring parallel thinking and quick reflexes.

We enjoyed playing it so much back in its day that we decided it would be a fun project to recreate it for Linux - our new OS of choice.

We originally started with GTK for the rendering system, but eventually decided that SDL was more apropriate for what we were trying to accomplish ( after attempting to make GTK work like SDL for awhile ).

So, while not without its grief, this project was a good one. We hope you enjoy the game!

Statistics::Distributions is a Perl module for calculating critical values and upper probabilities of common statistical distributions.

SYNOPSIS

use Statistics::Distributions;

$chis=Statistics::Distributions::chisqrdistr (2,.05);
print "Chi-squared-crit (2 degrees of freedom, 95th percentile "
."= 0.05 level) = $chisn";

$u=Statistics::Distributions::udistr (.05);
print "u-crit (95th percentile = 0.05 level) = $un";

$t=Statistics::Distributions::tdistr (1,.005);
print "t-crit (1 degree of freedom, 99.5th percentile = 0.005 level) "
."= $tn";

$f=Statistics::Distributions::fdistr (1,3,.01);
print "F-crit (1 degree of freedom in numerator, 3 degrees of freedom "
."in denominator, 99th percentile = 0.01 level) = $fn";

$uprob=Statistics::Distributions::uprob (-0.85);
print "upper probability of the u distribution (u = -0.85): Q(u) "
."= 1-G(u) = $uprobn";

$chisprob=Statistics::Distributions::chisqrprob (3,6.25);
print "upper probability of the chi-square distribution (3 degrees "
."of freedom, chi-squared = 6.25): Q = 1-G = $chisprobn";

$tprob=Statistics::Distributions::tprob (3,6.251);
print "upper probability of the t distribution (3 degrees of "
."freedom, t = 6.251): Q = 1-G = $tprobn";

$fprob=Statistics::Distributions::fprob (3,5,.625);
print "upper probability of the F distribution (3 degrees of freedom "
."in numerator, 5 degrees of freedom in denominator, F = 6.25): "
."Q = 1-G = $fprobn";

This Perl module calculates percentage points (5 significant digits) of the u (standard normal) distribution, the students 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.

If you are interested in more precise algorithms you could look at: StatLib: http://lib.stat.cmu.edu/apstat/ ; Applied Statistics Algorithms by Griffiths, P. and Hill, I.D., Ellis Horwood: Chichester (1985)

Hidden Linux is designed to meet the need of a robust and easily managed security infrastructure that must satisfy a demanding set of organization requirements, while ensuring performance and security. Hidden Linux addresses the needs of organizations wishing to develop a secure internet presence in any form of Internet activity.

Features

Robust, and improved security and easy to manage. Hidden Linux is built on the latest stable technology and includes all the components necessary to manage all internet functions.

Overview

Issues involving availability, performance, integrity, and privacy have been addressed with Hidden Linux; it improves the security of existing versions of Linux in several critical areas with the following features.

Design Philosophy

Security involves tradeoffs. Mitigating the risks with finding the right level of functionality and performance is always a challenge. Hidden Linux utilizes the principle of least privilege.

The secure design employed in Hidden Linux acknowledges the possibility of undiscovered flaws, and takes steps to minimize the security impact these flaws can have. read more

Trustix Secure Linux is a Linux distribution for servers with focus on security and stability.
Trustix Secure Linux was specifically designed for the server market. With a focus on security and stability, the whole system benefits from a fully automatic update agent known as SWUP, eliminating the most critical issue of server security - Patch management.
Enhancements:
- The Comodo Trustix team is proud to announce the release of Trustix Secure Linux 3.0.5, an update to the previous Tikka Masala. The new release is named Mirch Masala to describe the new interesting changes associated. This release has its major change from the previous release of 3.0 with the re-introduction of Anaconda as the preferred choice of installer. In addition, most packages have been upgraded to their latest versions upon customer requests. The core updates available are: kernel 2.6.19.7, PostgreSQL 8.2.3, MySQL 5.0.27, CP+ 3.3, Samba 3.0.24.