Draw a square of size 3

( this may be a function )

draw a line of size 2;

turn right;

draw a line of size 2;

turn right;

draw a line of size 2;

turn right;

draw a line of size 2;

 

but... how do you draw a line of size 2?

draw a line of size 2 can be a function too!!!

how about including the right turn in that function?

what do you think?

See the function