SimPEG.electromagnetics.frequency_domain.Simulation3DMagneticField.getA

Simulation3DMagneticField.getA(freq)

System matrix

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

Parameters

freq (float) – Frequency

Return type

scipy.sparse.csr_matrix

Returns

A