The differential equations and V-dependent functions are
where
and
For Figures 1-3, we use the parameters 
, and 
.
All conductances are in mS/cm
and voltages in mV.
These same parameters are
used for Figures 4-6, with the following exceptions: 
, and 
. In Figures 7-8,
the parameters are as in Figures 4-6 but 
The current, I,
(in 
) is
generally the only free parameter.