This is version 1.0 of an interactive tutorial and simulation dealing with
cable theory.  To run the simulation, type "genesis Cable".  Clicking the
left mouse button in the box labelled "HELP" will pop up a menu of topics
for which you may obtain help.  This information is contained in several
"*.hlp" files, which you may wish to print.  The file "totry.hlp" contains
some suggested exercises.  The theory needed to understand this tutorial may
be found in Chapter 2 of "Methods in Neuronal Modeling", by Christof Koch
and Idan Segev.  Further details of the tutorial and the theory behind it
will be given in "The Book of GENESIS" by James M. Bower and David Beeman,
to be published in early 1994 by TELOS/Springer.

Please send any suggestions for additions or improvements to
dbeeman@boulder.colorado.edu.

The tutorial may also be used to teach some methods in the numerical
integration of the differential equations used in neuronal modeling.  Nine
different methods (Euler, Trapezoidal, Exponential, Gear, Runge-Kutta and
second through fifth order Adams-Bashforth) are available, and the time step
for the integration may be chosen.  One should note that varying the
diameter of the cable compartments can have a large effect on the maximum
allowable step size!

Note on the help display:

The default width of the windows used to display the help files has been set
to accomodate the larger font used with X11 revision 4 ("R4").  When running
the simulation on DECstations and other machines which use X11 R3 with its
smaller font size, the windows will be wider than they need to be.  Although
they may be resized with the mouse, the easiest way to change them to an
appropriate size is to edit the file "helpforms.g" and change the statement
near the beginning, 'XREV = "R4"'  to 'XREV = "R3"'.
