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