See how easy is draw dots, segments and polygons. Note yet that is possible edit polygons in the same way we edit functions and animations.
[ 1.a | 1.b | 2.a | 2.b | 3.a | 4.a | 4.b | 5.a | 5.b | 6.a | 6.b | 6.c | 6.d | 7.a ]