Problem Statement:
Animate and plot a smiley face.

Animation
This program smileyfaceanim.c uses Ch QuickAnimation to draw and animate a smiley face shown below.

Display
The program smileyface_snapshot.c uses Ch QuickAnimation to display a snap shot for a smiley face.

Plotting
The program smileyface.cpp uses Ch plotting capabilities to plot a smiley face shown below.