TURTLE GRAPHICS 2.43



ASSIGNMENT:
A single filled cube can be made like this:
   re 20 [[ fd 40 rt 90 fd 1 rt 90 fd 40 lt 90 fd 1 lt 90 ]]
The cubes in this figure are all 20 x 20. The example makes a 40 x 40 cube. The bottom, left corner of the leftmost cube is at (0,0).