Domain
 Program
 Language
 Description
 Exec
 Source

Biology 
HardyWeinberg Law 

Population genetics: Calculating the HardyWeinberg equilibrium frequencies 


Chemistry 
Chemical equations 

Simple command line program to balance chemical equations 


Computing 
Directory compare 

Compare the content of two (Windows) directories 



Downloads count 

Simple command line program to determine the count of the monthly downloads from a webside 




Linux file permissions 

Interactively change Linux file permissions 



Lockscreen pictures 

Very simple command line program to copy the Windows 10 lockscreen pictures to a user directory 



Text file merge 

Simple text file merge command line program 



Text file sort 

Simple text file sort command line program 


Games 
Simple Blackjack 

Simple Blackjack command line card game 



Snake game 

Classic Snake game (console version) 


Mathematics 
Arithmetic baubles 

Arithmetic problems for primary school pupils (console version) 



Burning Ship fractal 

Burning Ship fractal program. Very simple (text based X/Yscaling and zooming), but nice pictures 



Complex equations 

First degree complex equations in 1 variable 



Complex equations II 

Second degree complex equations in 1 variable 



Complex roots 

Determination of all nth roots of a complex number 



Cubic equations 

Resolution of cubic equations in one variable (ax^{3} + bx^{2} + cx + d = 0) 



de Jong attractors 

Mathematical images: Peter de Jong attractors 



Julia sets 

Quadratic Julia sets program. Very simple (text based X/Yscaling and zooming), but nice pictures 



Linear equations 

Resolution of linear equation systems in one, two or three variables 



Lines in the plane 

Geometry in the plane: Line passing through 2 points 



Lines in the plane II 

Geometry in the plane: Parallel lines; lines intersection point 



Mandelbrot set 

Mandelbrot set program. Very simple (elementary scaling and zooming), but nice pictures 



Quadratic equations 

Resolution of quadratic equations in one variable (ax^{2} + bx + c = 0) 


Various 
3month calendar 

Multilingual calendar with 3 months display. Use cursor and PF keys to change month, year or language 



Morse alphabet 

Character or complete text translation (from or to morse code). Morse alphabet knowledge test 

