# single channel sodium channel with greatly enhanced single channel
# conductance.
dv/dt = -gl*(v-vl) -gna*m*(v-vna)+I
markov m 2
{0} {am(v)}
{bm(v)} {0}
#
init v=0,m=0
#
am(v)=PHI*.1e0*(.25e+02-v)/(EXP(.1e0*(.25e02-v))-.1e+01)
bm(v)=PHI*4.0e0*EXP(-v/1.8e01)
# parameters
par i=0,vna=115,vl=0,gna=.1,gl=.3,phi=1
#
done