Blog Archive


GLPK – GNU Project – Free Software Foundation (FSF)

GLPK – GNU Project – Free Software Foundation (FSF)

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Introduction |
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Introduction to GLPK

The GLPK (GNU Linear Programming Kit)
package is intended for solving large-scale linear programming (LP),
mixed integer programming (MIP), and other related problems. It is a set
of routines written in ANSI C and organized in the form of a callable

GLPK supports the GNU MathProg modeling language, which is a
subset of the AMPL language.

The GLPK package includes the following main components:

  • primal and dual simplex methods
  • primal-dual interior-point method
  • branch-and-cut method
  • translator for GNU MathProg
  • application program interface (API)
  • stand-alone LP/MIP solver

Downloading GLPK

The GLPK distribution tarball can be found on
[via http] and
[via FTP].
It can also be found on one of our FTP

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Integer programming – Wikipedia

A mathematical optimization problem restricted to integers

An integer programming problem is a mathematical optimization or feasibility program in which some or all of the variables are restricted to be integers. In many settings the term refers to integer linear programming (ILP), in which the objective function and the constraints (other than the integer constraints) are linear.

Integer programming is NP-complete. In particular, the special case of 0-1 integer linear programming, in which unknowns are binary, and only the restrictions must be satisfied, is one of Karp’s 21 NP-complete problems.

If some decision variables are not discrete the problem is known as a mixed-integer programming problem.[1]

Canonical and standard form for ILPs[edit]

An integer linear program in canonical form is expressed as:[2]

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U.S. Bureau of Labor Statistics

What They Do

The What They Do tab describes the typical duties and responsibilities of workers in the occupation, including what tools and equipment they use and how closely they are supervised. This tab also covers different types of occupational specialties.

Work Environment

The Work Environment tab includes the number of jobs held in the occupation and describes the workplace, the level of physical activity expected, and typical hours worked. It may also discuss the major industries that employed the occupation. This tab may also describe opportunities for part-time work, the amount and type of travel required, any safety equipment that is used, and the risk of injury that workers may face.

How to Become One

The How to Become One tab describes how to prepare for a job in the occupation. This tab can include information on education, training, work experience, licensing and certification, and important qualities that are

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Science and Technology | Homeland Security

S&T Mobilizes Key Data to Inform COVID-19 Response

The recent and increasingly rapid spread of COVID-19 will present formidable challenges in the effort to contain the outbreak and protect the health and safety of our citizens.

The Department of Homeland Security’s Science and Technology Directorate (DHS S&T) is working diligently to William N. Bryan; Senior Official Performing the Duties of the Under Secretary for Science and Technologysupport and inform the efforts of our federal agency partners and health organizations about the latest developments in news and research related to the COVID-19 pandemic, as well as identify the gaps in our knowledge about the virus that require the attention of the medical emergency response community.

Many knowledge gaps about the virus directly affect DHS policy and operations, both in response to the outbreak and normal operations that may be impacted by the outbreak. Key knowledge gaps include:

  • Human infectious dose – how much of a dose does it take to make a person sick?
  • The ability
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The 6 Best Programming Languages for Game Design

Programming Languages for Game Development

It’s an inescapable fact that game designers, on occasion, may be asked to do a little programming.

This comes down to entry-level designers often switching their positions in teams a lot, and the nature of game design teams being very fluid.

It is not unusual for designers to step in and program, freeing up the game programmers to work on something more complicated, just like it is not unusual for programmers to be consulted during the design process.

That said, getting started in programming can be a little daunting.

What is the best language for game development?

Currently, The best programming languages for games are:

  • C++
  • Java
  • HTML5
  • CSS3
  • JavaScript
  • SQL

Game programming is the lifeblood and skeletal framework for all games you and I play. All of the crazy things you can do in the Grand Theft Auto games? ALl programmed.

How is programming used in games?

Well, It

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Free Programming Books

Download free Programming eBooks in pdf format or read Programming books online.

Programming Persistent Memory

Programming Persistent Memory describes the technology and why it is exciting the industry. It covers the operating system and hardware requirements as well as how to create development environments using emulated or real persistent memory hardware. …

Natural Language Processing Succinctly

In Natural Language Processing Succinctly, author Joseph Booth will guide readers through designing a simple system that can interpret and provide reasonable responses to written English text. With this foundation, readers will be prepared to tackle the greater challenges of natural language development. …

Invent with Scratch!

Scratch is a free, graphical programming environment from MIT. It teaches 8- to 16-year-olds programming by snapping code blocks together to form complete programs. In Scratch Programming Playground, you’ll learn to program by making cool games. …

Implementing a Custom Language Succinctly

Custom languages provide many benefits, but

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Computer Clan




We’re a community for techies, and for people curious about tech. We’ve been creating entertaining and educational tech videos on YouTube since 2007.

We have created entertaining and educational tech videos just for you! You’re the lifeblood of the Computer Clan. Tag along for the fun.

Stay in touch with us. The creator, Ken Doe, will handcraft stories and updates, and send them right to your inbox.

The Computer Clan was built by many collaborators and dedicated techies! However, there are two people at the helm…

KEN doe

I started YouTube in 2007, and have been making videos ever since. My goal is to create an inviting tech community for you, and to create bad-ass videos that you’ll love. If you have a question or comment, message me here. : )

brent penrose

I have a passion for

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Spacejock Software

This site and all the software are the work of one person: Simon Haynes, a programmer with over 20 years experience on projects large and small. Every program was written for my own use, then released for everyone to use and enjoy. Apart from FCharts Pro, all my software is free to download and use and you’re encouraged to send me feature requests!


When you launch your browser for a ‘quick session’, AntiBrowser will run instead. It will display a random 12 digit code, and you have to type the code and click Run Browser to get to the life-sucking time-wasting internet. If you decide it wasn’t that important after all, just click the Forget It button.


Book catalogue software. Enter all your books with author, category, publisher etc and print them out in a variety of formats. Also includes library features – borrowers, multiple copies of the

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What is a Computer Network?

One of the earliest examples of a computer network was a network of communicating computers that functioned as part of the U.S. military’s Semi-Automatic Ground Environment (SAGE) radar system. In 1969, the University of California at Los Angeles, the Stanford Research Institute, the University of California at Santa Barbara and the University of Utah were connected as part of the Advanced Research Projects Agency Network (ARPANET) project.

It is this network that evolved to become what we now call the internet.

Networks are used to:

  • Facilitate communication via email, video conferencing, instant messaging, etc.
  • Enable multiple users to share a single hardware device like a printer or scanner.
  • Enable file sharing across the network.
  • Allow for the sharing of software or operating programs on remote systems.
  • Make information easier to access and maintain among network users.

There are many types of networks, including:

  • Local Area Networks (LAN).
  • Global Area Networks
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Best Internet Service Providers 2020

2. What’s your monthly budget?

What’s the maximum you can afford to spend on internet each month? This is always a good place to start because no one wants to spend more than they need to on anything.

If you find that the home internet plan you want doesn’t match your wallet’s reality, we’ve got a few tips on how you can lower your internet bill.

3. How much download speed do you need?

You can start narrowing down your internet-only plan choices by figuring out how much speed you need.

Once you figure out whether you need just 25 Mbps for some relaxing Facebook surfing and email forwarding or 300 Mbps for a connected smart home full of gamers, you can pinpoint different plans that offer just the right amount of speed.

4. Do you need extra data?

Most DSL, cable, and fiber ISPs offer either one terabyte

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