SimPEG.electromagnetics.natural_source.Simulation3DPrimarySecondary.getA

Simulation3DPrimarySecondary.getA(freq)

System matrix

$$\mathbf{A}={\mathbf{C}}^{\mathrm{\top }}{\mathbf{M}}_{{\mu }^{\mathbf{-}\mathbf{1}}}^{\mathbf{f}}\mathbf{C}+i\omega {\mathbf{M}}_{\sigma }^{\mathbf{e}}$$

Parameters

freq (float) – Frequency

Return type

scipy.sparse.csr_matrix

Returns

A