Larger numbers of grid points yield greater accuracy at the cost of a slower simulation. Note that changing the region of simulation or the number of grid points will destroy data, reset the graphs, and change the time step. In order to zoom in or out on the simulation without resetting it, the [Parameters]|[Scale Wave] option should be chosen or the upper left corner of the simulation graph may be clicked.
, used in
diffusion and Schrödinger simulations, but 
is automatically set
such that 
(for numerical stability) for
electromagnetic, Klein-Gordon, sine-Gordon, double-sine Gordon, and phi-Four
equations. Note that a smaller time step will improve accuracy but decrease
simulation speed. To adjust simulation speed without affecting numerical
accuracy, use hot keys [F5 Slower]
and [F6 Faster]
, available
while the program is running or select [Pref]|[Speed]
.
) in
the Schrödinger simulation, and the number of particles present in a
diffusion simulation.
) in a Schrödinger equation,
and particle density in a diffusion simulation.
boundaries are also available. When a wave encounters a Fixed
boundary,
it undergoes a ``hard reflection'' and a phase change of 
. When
the Periodic
boundary condition is selected, waves traveling off the
left-hand side of the screen re-enter on the right, and vice versa, creating a
``wrap-around'' effect. The Absorbing
boundary condition corresponds to boundaries which absorb the incident wave
Note that if total energy, E, exceeds 10 when Saturation is activated, the resultant effective gain will be negative and the total energy will approach 10 asymptotically.
).
, between calculations remains unchanged.