Full:
This modes draws the separating
surface immediately after you press the Train Button without
showing the previous lines before it
converged to the final solution.
Trace:
This modes allows you to see
every single line drawn untill it
converges to the final Solution. You can
aalso choose the speed of animation that
each line is drawn by selecting the speed
from the Animation menu by
choosing Fast, Slow or Regular speed.
Step:
This modes allows you to Control
when a new line should be drawn untill
you reach the final solution. Thus if
this mode is selected you will not see a
new line unless you press the Step button.