SimPEG.electromagnetics.frequency_domain.Simulation3DElectricField.getA

Simulation3DElectricField.getA(freq)

System matrix

\[\mathbf{A} = \mathbf{C}^{\top} \mathbf{M_{\mu^{-1}}^f} \mathbf{C} + i \omega \mathbf{M^e_{\sigma}}\]

Parameters:

freq (float) – Frequency

Return type:

scipy.sparse.csr_matrix

Returns:

A