Suppose that you want to solve the boundary value problems involving the
equation

Suppose that you have just received a 2dBVP display as the default after typing
the equation.
The default display uses *t* as the variable on the horizontal axis, and
sets the plotting interval to be (-10,10).
The default boundary conditions would be *x(-10)=0, x(10)=0*.
You might use the display dialog box to change the display to the rectangle
(0,1)x(-3,3).
When you finish, you would find that the boundary conditions automatically
changed to *x(0)=0, x(1)=0*, and the beads would remain at the edges of the
display, as before.

Wed Sep 30 15:21:52 PDT 1998