F Move forward by line length drawing a
line
G Move forward by line length drawing a
line
f Move forward by line length without
drawing a line
+ Turn left by turning angle
- Turn right by turning angle
| Reverse direction (ie: turn by 180
degrees)
[ Push current drawing state onto stack
] Pop current drawing state from the
stack
@ Draw a dot with line width radius
> Multiply the line length by the line
length scale factor
< Divide the line length by the line
length scale factor
& Swap the meaning of + and -
( Decrement turning angle by turning angle
increment
) Increment turning angle by turning angle
increment