Editing L-system (section)

===Example 6: dragon curve ===
The [[dragon curve]] drawn using an L-system.

:     '''variables''' :   F G
:     '''constants''' :   + −
:     '''start'''     :   F
:     '''rules'''     :   (F → F+G), (G → F-G)
:     '''angle'''     :   90°

Here, F and G both mean "draw forward", + means "turn left by angle", and − means "turn right by angle".

[[File:Dragon curve L-system.svg|centre|400px]]

{{center|1=Dragon curve for ''n'' = 10}}