This program is used to find Mersenne Prime numbers. Mersenne numbers can be proved composite (not prime) by either finding a factor or by running a Lucas-Lehmer primality test.

mprime

Memento is a free and open source, mpv-based video player that makes studying Japanese easier with a built in popup dictionary, Anki integration, and more.Features:Memento uses Yomichan's dictionary format and supports all the same dictionariesAutomates Anki card creation through AnkiConnectGrammar aware search matches terms in subtitles regardless of most inflectionsSupports mpv plugins, upscalers, and shadersSupports mpv configuration files such as input.conf for rebinding keys and mpv.conf for configuring mpvSupports streaming from many websites through youtube-dl

memento

An mpv-based video player for studying Japanese

Colobot (Colonize with Bots) is an educational game aiming to teach programming through entertainment. You are playing as an astronaut on a journey with robot helpers to find a planet for colonization. It features 3D real-time graphics and a C++ and Java-like, object-oriented language, CBOT, which can be used to program the robots available in the game.

Colobot

Minuet is an application for music education. It features a set of ear training exercises regarding intervals, chords, scales and more.

Minuet

A practical tool to foresee the result of calculus exercises.Compute derivativesCompute integralsPlot the original expression and result within a given rangeIf you are interested, open an issue in github to update a translation or make a pull request. All available translations:EnglishPortugueseItalianSpanish (outdated)Slovakian (outdated)

Calculus

KGeography is a geography learning tool, which allows you to learn about the political divisions of some countries (divisions, capitals of those divisions and their associated flags if there are some).Features:Browse the maps clicking in a map division to see its name, capital and flagThe game tells you a map division name and you have to click on itThe game tells you a capital and you have to guess the division it belongs toThe game tells you a division and you have to guess its capitalThe game shows you a map division flag and you have to guess its nameThe game tells you a map division name and you have to guess its flagThe game shows an empty map and you have to place divisions on it one by one

KGeography

From fitness lovers to fitness lovers – get your health organized with WGER, your Workout Manager!Have you already found your #1 fitness app and do you love to create your own sports routines? No matter what type of sporty beast you are – we all have something in common: We love to keep track of our health data &lt;3So we don’t judge you for still managing your fitness journey with your handy little workout log book but welcome to 2021!We have developed a 100% free digital health and fitness tracker app for you, sized down to the most relevant features to make your life easier. Get started, keep training and celebrate your progress!wger is an Open Source project and all about:No need to google for the ingredients of your favourite treats – choose your daily meals from more than 78000 products and see the nutritional values. Add meals to the nutritional plan and keep an overview of your diet in the calendar.You know what is best for your body. Create your own workouts out of a growing variety from 200 different exercises. Then, use the Gym Mode to guide you through the training while you log your weights with one tap.Never lose sight of your goals. Track your weight and keep your statistics.wger is your personalized fitness diary – but you own your data. Use the REST API to access and do amazing things with it.Please note: This free app is not based on additional fundings and we don’t ask you to donate money. More than that it is a community project which is growing constantly. So be prepared for new features anytime!Open Source means that the whole source code for this app and the server it talks to is free and available to anybody:Do you want to run wger on your own server for you or your local gym? Go ahead!Do you miss a feature and want to implement it? Start now!Do you want to check that nothing is being sent anywhere? You can!Join our community and become a part of sport enthusiasts and IT geeks from all over the world. We keep working on adjusting and optimizing the app customized to our needs. We love your input so feel free to jump in anytime and contribute your wishes and ideas!find the source code onask your questions or just say hello on our discord Server

wger

Fitness/workout, nutrition and weight tracker

An evil force has spread its way across the land of Ovun and is threatening to destroy this peaceful city. Be the hero that Ovun needs! Unlock the secrets of the hidden Dragon Temples and awaken the dragon, Dalfur. Only with this dragon will you defeat the evil Shadow Warlord and his minions, the Shadow Fiends.

Dragon’s Apprentice

An RPG like puzzle solving dungeon crawling game, and more!

Zoom and pan around a fractal in real time. It can display the animated fractals. It displays the Mandelbrot set or many other fractals and allows you to zoom smoothly into the fractal. Various coloring modes are provided for both the points inside and outside the selected set. In addition, switching between Mandelbrot and Julia fractal types is provided. Other features include autopilot mode, palette changing, image saving, fractal inversion, filters, and a built in fractal tutorial.

XaoS

Fast interactive real-time fractal zoomer/morpher

Qwertone is a very simple music synthesizer that relies on usual QWERTY keyboard for input.

Qwertone

Retro is a simple toy clock that can be customized with CSS.

Retro

A customizable retro digital segment clock

Blinken is based on an electronic game released in 1978, which challenges players to remember sequences of increasing length. On the face of the device, there are 4 different color buttons, each one with their own distinctive sound. These buttons light up randomly, creating the sequence that the player must then recall. If the player is successful in remembering the sequence of lights in the correct order, they advance to the next stage, where an identical sequence with one extra step is presented. If they are incorrect, the game is lost, and the player must start again from the beginning. The goal is to get a high score - each step in the sequence is worth one point, so correct entry of a sequence of 8 lights is worth 8 points on the high score table.

Blinken

Midterm for Linux is completely free to use. It is a note-taking app with study tools to help you study better. You can use it to prepare for exams.Features:Write notes with quizzes for studying (cloze deletion, image occlusion inspired from Anki).Sync notes with your phone and/or tablet.Study offline (offline accessible).Dark mode.Powerful visual editor.Keep track of notes to study before exams.Collaborate and study with your friends.Support nested folders.and many more.

Midterm: Notes & Flashcards

You've landed on a mysterious planet with one mission; find the secret map to locate the hidden bunker. Can you find it? Hack the world to cross perilous lands and the obstacles within. Play to find out if can outsmart the passage.

The Passage

Hack your way through this side scrolling action adventure shooting game

Kig is an interactive mathematics software for learning and teaching geometry. It allows to explore mathematical figures and concepts using the computer and also can serve as a drawing tool for mathematical figures. Constructions can be made with points, vectors, lines, and polygons and all elements can be modified directly by using the mouse. Kig helps teachers and students to make conjectures and to understand how to prove geometric theorems.

Electronic Quran Browser.Support Audio Tilawa (mp3 from ayat) And add Option To Add/Download Audio tilawa from ayat files (*.ayt)Support Auto Scroll + Run TilawaSupport Tarajem (from ayat) And add Option To add Tajarem from ayat files (*.ayt)Support Tafasir (from ayat) And add Option To add Tafasir from ayat files (*.ayt)Support Speed Up/Down Auto scrollSupport save/load last current sura ayaSupport search for sura

albasheer

KBruch is a small program to practice calculating with fractions and percentages. Different exercises are provided for this purpose and you can use the learning mode to practice with fractions. The program checks the user's input and gives feedback.Features:Arithmetic exercise - in this exercise you have to solve a given fraction task. You have to enter the numerator and the denominator. This is the main exercise.Comparison exercise - in this exercise you have to compare the size of 2 given fractions, using the symbols &gt;, &lt; or =.Conversion exercise - in this exercise you have to convert a given number into a fraction.Factorization exercise - in this exercise you have to factorize a given number into its prime factors.Percentage exercise - in this exercise you have to calculate percentages.

KBruch

KTurtle is an educational programming environment for learning how to program. It provides all programming tools from its user interface. The programming language used is TurtleScript, which is loosely based on Logo. All commands and messages are translated into the user's language. KTurtle features an intuitive syntax highlighting, simple error messages, integrated canvas to make drawings, an integrated help, slow-motion and step execution.

KTurtle

KHangMan is a game based on the well-known hangman game. It is aimed at children aged six and over. The game has several categories of words to play with, for example: Animals (animals words) and three difficulty categories: Easy, Medium and Hard. A word is picked at random, the letters are hidden, and you must guess the word by trying one letter after another. Each time you guess a wrong letter, part of a picture of a hangman is drawn. You must guess the word before being hanged! You have 10 tries.

KHangMan

Kiten is a Japanese reference and study tool. It features an English to Japanese and Japanese to English dictionary, as well as a Kanji dictionary. For the Kanji dictionary there are multiple ways supported to look up characters.

Kiten

Learning objectives:For the best experience, enjoy Sidetrack as part of Hack with your friends in the Clubhouse guiding you through its features.

Sidetrack

KmPlot is a program to plot graphs of functions, their integrals or derivatives. The graphs can be colorized and the view is highly configurable, is scalable, and can be zoomed. The program features a powerful mathematical parser, different plot types (cartesian, parametric, polar, implicit, differential), and provides simple mathematical tools like for finding maximum/minimum of a function. Parametrized functions can be visualized by adjusting the variable parameter via a slider. Plots can be exported as bitmap format pictures (BMP, PNG) and can be printed.

KmPlot

Free and open source Islamic desktop application that contains multiple features useful to Muslims. Customizable and easy to use.Modern interfaceThe Holy Quran with text and audioA large collection of adhkarPrayer times using coordinates and time zonesMultple methods to calculate prayer time (Umm Al-Qura, Muslim World League, and more).Audible notifications for adhkar and prayer timesNOTE: Currently only supports Arabic

Altaqwaa

Denemo is a music notation program that lets you rapidly enter notation. Music can be typed in at the PC-Keyboard, or played in via MIDI controller. The typesetting is done in the background by LilyPond while you work, and is generally flawless publication quality. Any final tweaks to can be done on the final typeset score with the mouse if needed. This represents an enormous practical improvement over the most programs which require you to re-position colliding notation constantly as you enter the music.Unique to Denemo are methods to enter music in a musical, rather than mechanical, manner. You play in a phrase or two of the music using the number keys to indicate the note durations. Audible feedback lets you hear what you have entered; playing the phrase a second time on a real instrument adds the pitches to the rhythm. Again, Denemo gives you audible feedback so that you don’t enter E-flat when you meant D-sharp etc.Another great feature is the ability to put links in the score to the original source document that you transcribed from. Clicking on such a link opens the document for you and highlights the bar you are looking at. You can use this to continue work from where you left off, or for looking back at the source to check a doubtful bar.

Denemo

“All musicians are subconsciously mathematicians” – Monk“Music is a hidden arithmetic exercise of the soul, which does not know that it is counting.” ~ LeibnizMusic Blocks is a programming language and collection of manipulative tools for exploring musical and mathematical concepts in an integrative and fun way.

Music Blocks

A collection of tools for exploring fundamental musical concepts in a fun way.

Pop open the magical pages that offer a new approach to interacting with the beloved Aesop's Fables! Read and touch these time honored stories and then hack the pages to make them your own. The art, sounds and text can all be hacked, creating your unique fables you can share with others.

Fablemaker

Enter the world of Aesop's fables like never before! Interactive stories where you can customize characters, texts and sounds, hacking into its code in this absorbing and educational app.

Viking is a free/open source program to manage GPS data.Viking includes the following features:Import GPX, TCX, KML and KMZ filesExport to GPX and KMZ filesImport and Export numerous file types via GPSBabelCreate and edit Tracks, Routes and WaypointsShow OpenTopoMap, OpenStreetMap(OSM) Maps and various other Maps from online providersShow Generic Map Images with World File definitionsUpload/Download OSM TracesGeotag ImagesFollow Realtime GPS PositionVisualization and StatisticsDigitial Elevation Model (DEM) SupportOSRM Routing Support

Viking

You're in a dream...or maybe a nightmare! All of the toys have come alive and are chasing you. Fight them off and run to survive for as long as you can. Want the ultimate challenge? Try out Math Mode and use your number skills as a weapon to fight back the evil toys!

Midnightmare Teddy

Greenfoot is an integrated development environment using Java or Stride designed primarily for educational purposes at the high school and undergraduate level. It allows easy development of two-dimensional graphical applications, such as simulations and interactive games.

Greenfoot

Speak is a talking face.  Anything you type will be spoken aloud using a speech synthesizer.  You can adjust the accent, rate and pitch of the voice as well as the shape of the eyes and mouth.  This is a great way to experiment with a speech synthesizer, learn to type or just have fun making a funny face.

Speak

An animated face that speaks whatever you type

Education