SimPEG.electromagnetics.viscous_remanent_magnetization.Simulation3DLinear.xiDeriv

property Simulation3DLinear.xiDeriv

Derivative of Amalgamated Viscous Remanent Magnetization Parameter xi = dchi/ln(tau2/tau1) wrt the model.

Returns:

scipy.sparse.spmatrix, discretize.Zero, or discretize.Identity