# Morris-Lecar model Methods Chapter PRC stuff
dv/dt = ( I - gca*minf(V)*(V-Vca)-gk*w*(V-VK)-gl*(V-Vl)+s(t))/c
dw/dt = phi*(winf(V)-w)/tauw(V)
v(0)=31.644
w(0)=.2279
minf(v)=.5*(1+tanh((v-v1)/v2))
winf(v)=.5*(1+tanh((v-v3)/v4))
tauw(v)=1/cosh((v-v3)/(2*v4))
param ph=0
param vk=-84,vl=-60,vca=120
param i=50,gk=8,gl=2,c=20
param v1=-1.2,v2=18
param s0=0,wid=.25
s(t)=s0*heav(t-ph)*heav(ph+wid-t)
# Uncomment the ones you like!!
#param_fig1-3 v3=2,v4=30,phi=.04,gca=4.4
param_fig4-6 v3=12,v4=17.4,phi=.06666667,gca=4
#param_fig7-8 v3=12,v4=17.4,phi=.23,gca=4
@ total=250, dt=.25,ylo=-60,yhi=35,xlo=0,xhi=250,xp=t,yp=v
done