Tutorials

• Monodomain simulation
• Reaction-Eikonal model
• ECGs and electrograms (lead field)

Choosing a model

You want…	Use	Cost
Activation / isochrone map	ReactionEikonal.eikonal_activation_times() (no reaction)	cheapest (seconds)
Full Vm cheaply (e.g. ECG source)	ReactionEikonal with diffusion=False	cheap (no linear solve)
Full diffusion physics on a coarse mesh	ReactionEikonal with diffusion=True	moderate (CG per step)
Most accurate reference / fine mesh	Monodomain	full reaction-diffusion
Body-surface ECG / electrograms	any of the above → LeadField	one solve per electrode

On a fine mesh, diffusion=True costs the same as Monodomain (the diffusion dominates), so prefer Monodomain there; the reaction-eikonal pays off on coarse meshes and for activation maps.