simpeg.electromagnetics.time_domain.sources.LineCurrent.phiInitial#

LineCurrent.phiInitial(simulation)[source]#

Initial scalar potential

Returns the scalar potential at the initial time is static fields are present.

Parameters:
simulationsimpeg.electromagnetics.base.BaseEMSimulation

An electromagnetic simulation

Returns:
Zero or numpy.ndarray

Returns Zero if there are no initial fields. Returns a numpy.ndarray if there are initial fields.