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U++ is a cross-platform rapid application development environment in C++. Can work with GCC, Clang, MinGW and Visual C++ and contains a full-featured debugger.
Fast development comes from smart and aggressive use of C++, not fancy code generators. In this regard, U++ competes with popular scripting languages while retaining the runtime characteristics of C/C++.
The development environment includes BLITZ build technology for up to 4x faster C++ rebuilds, visual designers for U++ libraries, Topic++ for documenting code and creating rich text resources for applications (such as help and code documentation), and Assist++, a powerful C++ code analyzer , which provides features such as code completion, navigation, and transformation.

StarDict is a cross-platform international dictionary lookup program.

Main features:
* Glob-style pattern matching search
* Fuzzy search
* Working from system tray
* Scanning mouse selection and showing pop-up windows with translation of selected words
* Pronouncing of the translated words
* Plugins support
* ..and more

qStopMotion - creating frame-by-frame animated films from images imported from a camera or computer.

The resulting animation can be exported to various video formats, such as mpeg or avi.

KuMir (Set of Educational WORLDS) is a programming system designed to support initial computer science and programming courses in secondary and high schools.
Peculiarities:
✔ The KuMir system uses a school algorithmic language with Russian vocabulary and built-in executors Robot and Draftsman;
✔ When entering a program, KuMir carries out constant full control of its correctness, reporting in the fields of the program about all detected errors;
✔ When executing a program in step-by-step mode, KuMir displays the results of assignment operations and the values of logical expressions in the fields. This allows you to speed up the process of mastering the basics of programming.

KTurtle is an educational programming environment that uses the TurtleScript programming language (inspired by the logo) to make programming as easy and accessible as possible.
The user issues TurtleScript language commands to control the "turtle" as it draws on the canvas, making KTurtle suitable for teaching basic math, geometry, and programming

Denemo is a program designed to prepare sheet music for further processing and publication using LilyPond.
This is not a WYSIWYG music editor; its task is to quickly type notes, without displaying them correctly. Almost all input functions are implemented using hot keys, which actually speeds up the typing process, according to the developers. Some keyboard commands are the same as the corresponding commands in the Lilypond syntax: for example, moving the cursor or note an octave up and down is done with the keys ' and, respectively, the beginning and end of a phrasing line - ( and ), etc. Command overrides are available, so the user can customize the environment completely for yourself.
Denemo has different operating modes: insertion modes (normal and classic, which differ in the order of keystrokes when entering notes) and editing. Also, any operation can be performed with the mouse and recognition of their recorded sound, giving musicians a more familiar input method.
By saving scores in the LilyPond format and further editing the resulting source file, you can improve the appearance. It is possible to export scores in ABC music notation format and create MIDI files.

дозволяє користувачам легко редагувати аудіо / відео проекти, засновані на GStreamer структурі: фіксування аудіо та відео; з'єднання, зміна розмірів, вирізання, застосування ефектів до аудіо / відео джерел.

Pencil2D It lets you create traditional hand-drawn animation (cartoon) using both bitmap and vector graphics.

The basic features of Pencil2D are:
+ layers support (separated layer for bitmap, vector and soud part)
+ bitmap drawing
+ vector drawing
+ sound support

Krita is an application for working with raster images. It allows you to both create images from scratch and work with ready-made images. You can work from photos or scans, or start from scratch. Krita directly supports most graphics tablets.

IDLE is an Integrated Development Environment for Python.
IDLE is written using Tkinter and is therefore available on different operating systems.