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Precise Calculator 2.5 - preccalc-32bit.zip (169 kB), preccalc-64bit.zip (203 kB),   C++, Assembler source code screenshots 9/24/2011
You can adjust precision of this calculator (for example to 10000 digits). It knows all usual mathematical functions, statistical functions, prime numbers, PI, matrices, complex numbers, fractions, integral and it is programmable (variables, commands if, goto, print, return, ...).
Precise Calculator examples: Statistics, Geometry, Algebra, Programming
Time needed to compute number PI:
precision:100010,000100,000250,000500,0001,000,000
Precise Calculator 32-bit15 ms130 ms9.7 s61 s4 min 17 s19 min 38 s
Precise Calculator 64-bit10 ms80 ms2.8 s19 s1 min 23 s7 min 33 s
HotkeyP 4.6 - hotkeyp.zip (235 kB),   C++ source code screenshot 4/13/2012
You can assign a keyboard shortcut, a mouse shortcut or a joystick shortcut to any executable file, document, folder or WWW page. You can also use all multimedia keys, the fourth and fifth mouse buttons and a remote control (if you install WinLIRC). Other commands are: change keys in other applications, shutdown, restart, lock computer, start a screen saver, change the desktop resolution, set window opacity, audio volume, set process priorities, terminate applications, eject CD, set CD speed, show disk free space, empty the recycle bin, delete temporary files, change desktop wallpaper, save/restore desktop icons positions, minimize any application to the system tray, hide window, change window transparency, zoom tool, screenshot to BMP file, set window always on top, paste date/time or any text, ...
Tiny Player 2.8 - tinyplay.zip (153 kB),   version for Win 95/98/ME,   MSVC++ source code screenshot 8/19/2011
The player uses DirectShow technology, so it can play all audio and video files. Codecs and filters are not included in this package, I recommend to install FFDShow. User interface is not skinable, but you can customize colors and playlist font. The player can read ID3/Ogg/APE/WMA tags, but cannot modify them. It supports Unicode tags and UTF-8 freedb records. You can change all keyboard accelerators, audio buffer length, playlist columns, subtitles font, playback speed, CD drive speed, file extensions association. Useful functions: oscilloscope or spectrum analyzer visualization, local and remote freedb, CD-TEXT, equalizer.
Robot KAREL 4.2 - karelWin.zip (65 kB),   version for DOS,   C++ source code screenshot 9/6/2011
programming language for children. The robot knows commands step, left, right, pick, put, paint, delay. You can use integer variables, multidimensional arrays, arithmetic and logic operators, procedures and functions with parameters.
The application includes a text editor, compiler, interpreter and debugger. Its environment is similar to Borland Pascal. The text editor can copy, paste, find, replace, undo, redo, indent ...
Screen saver - moving circles 1.4 - kruhy.zip (12 kB) 5/24/2002
The circles have random colors and sizes. They bounce against each other.
Magic squares - magic4x4.zip (5 kB) screenshot 10/1/1999
Numbers 1 to 16 are placed inside a square 4x4, so that rows, colums and diagonals have the same sum. The program finds 880 squares.
Chess knight - kun.zip (7 kB) screenshot 1/16/2003
The knight has to jump through all chess squares (each square only once). The program is started from the command line and its paramters are width and height of the board. Results are saved to a file.

Other my programs are only in Czech language :(

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