§@·~4


1.Construct this pretty flower: 
2.Construct the line segments joining (cos(t),0) with (0,sin(t)) as t ranges over [0,2p]. 
3.

Construct the velocity vector field along a constant motion around a circle. 

4.Construct this figure: 
5.Construct the line segments joining [cos(t),sin(t)] with [cos(2t),sin(2t)] as t ranges over [0,2p]. 
6.Construct this figure: 
7.Construct this graph associated with the logistic equation 
                   x ' = ax(1-x) 
8.Draw 20 concentric circles as thus: 
9.Construct the circles with center at (cos(t),sin(t)) passing through the point (1,0) with t ranging over [0,2p]. 
 
10.Construct the circles with center at (cos(t),sin(t)) and tangent to the y-axis with t ranging over [0,2p]. 
11.Construct the circles with center at (cos(t),sin(t)) and and passing through (2cos(t)/3+cos(2t)/3,2sin(t)/3+sin(2t)/3) with t
ranging over [0,2p]. 
12.Construct this figure: 
13.Construct this pattern: 
14.Construct the reflections of a light ray inside a square: