SimPEG.electromagnetics.time_domain.Simulation3DMagneticFluxDensity.getAdiag

Simulation3DMagneticFluxDensity.getAdiag(tInd)

System matrix at a given time index

$$(\mathbf{I}+\mathbf{dt}\mathbf{C}{{\mathbf{M}}_{\sigma }^{\mathbf{e}}}^{-1}{\mathbf{C}}^{\mathrm{\top }}{\mathbf{M}}_{{\mu }^{\mathbf{-}\mathbf{1}}}^{\mathbf{f}})$$