Last Updated 12/12/09

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original_double_pendulum.py is Bruce Sherwood's original double pendulum 
example in Vpython upon which my robot arm is based.
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robot_arm_final.py is the latest version of my robot arm.  It is capable
of "picking up" an object and setting it down elsewhere.

Controls:

-Press a number 1-9 to pick a spot on the grid:
 ___________
| 1 | 2 | 3 |
|___|___|___|
| 4 | 5 | 6 |
|___|___|___|
| 7 | 8 | 9 |
|___|___|___|
-Press 0 to take piece back to initial platform on the side
-Pressing the numbers sets up a command list for the arm.  Hit the
enter key to execute the list.
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robot_arm_rect.py is just the robot arm program moving along rectangular
coordinates.

Controls:

-Use "w" and "s" to move the arm forward and backward
-Use "a" and "d" to move the arm left and right


The program records keystrokes in a list.  Hit the enter key to execute
the list.
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sinusoidal_linear_movement compares the movement of the robot arm using
both sinusoidal and linear interpolation by superimposing two robot arms
of different colors.

Controls are the same as robot_arm_rect.py, but this arm moves according
to a coordinate system similar to polar coordinates.
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