SimPEG.electromagnetics.frequency_domain.Simulation3DCurrentDensity.getA#

Simulation3DCurrentDensity.getA(freq)[source]#

System matrix

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

Parameters:

freq (float) – Frequency

Return type:

scipy.sparse.csr_matrix

Returns:

A