Figure 6

The X–Y nullclines in the HR neuron (a) and CORDIC_HR neuron (b). As it is evident, the number and type of equilibrium points are the same in the original and proposed models.

The X–Y nullclines in the HR neuron (a) and CORDIC_HR neuron (b). As it is evident, the number and type of equilibrium points are the same in the original and proposed models.