Oscillating FHN systems
du/dt = F(u, v) = u(1 - u)(u - a) - v,
dv/dt = H(u, v) = ε (bu - v).
For negative
a
values the
(u=0, v=0)
fixed point is unstable and
u, v
oscillate.
a
b
ε
dt
u0
v0
Ymin
Ymax
field
The script makes 800 time steps
dt
.
Heart rhythms
updated
24 Dec 2011