Probability Illustrator

The relationship between the wave function and probability is shown by this
program. The user begins by sketching a wave function in the Wave Function
window on the screen. The program computes the corresponding probability
density distribution and displays it in the Probability Density window. The
user can move a cursor in either window and observe the value of the wave
function and probability density displayed at the location of the cursor.

The program also computes the total probability over a region of space
between two points specified by the user, by integrating the probability
density distribution between those points.
