%
% Hodgkin-Huxley equations
% Parameters were taken from Hoppenstaedt, p.132
%
% Capacity of the cell membrane
C=1; 
% Maximum conductivities
gnamax=120; 
gkmax=36;
gclmax=0.3;
% Rest potentials of individual species
ena=45;
ek=-82;
ecl=-59;
% Kinetic coefficients for the gating equations
% x(1) ist the cell potential
alphan= 0.1*(x(1)+60)/10/(1-exp(-(x(1)+60)/10));
betan= 0.125*exp(-(x(1)+70)/80);
alpham= (x(1)+45)/10/(1-exp(-(x(1)+45)/10));
betam= 4*exp(-(x(1)+70)/18);
alphah= 0.07*exp(-(x(1)+70)/20);
betah= 1/(1+exp(-(x(1)+40)/10));