simpeg.electromagnetics.static.resistivity.receivers.Pole.evalDeriv

Pole.evalDeriv(src, mesh, f, v=None, adjoint=False)

Derivative of the projected fields with respect to the model, times a vector.

Parameters:

srcsimpeg.electromagnetics.static.resistivity.sources.BaseSrc

A frequency-domain EM source

meshdiscretize.base.BaseMesh

The mesh on which the discrete set of equations is solved

fsimpeg.electromagnetic.static.resistivity.fields.FieldsDC

The solution for the fields defined on the mesh

du_dm_vnumpy.ndarray, default = None

The derivative of the fields on the mesh with respect to the model, times a vector.

vnumpy.ndarray

The vector which being multiplied

adjointbool, default = False

If True, return the adjoint

Returns:

numpy.ndarray

The derivative times a vector at the receiver(s)