SimPEG.data_misfit.L2DataMisfit.deriv

L2DataMisfit.deriv(m, f=None)

Derivative of the data misfit

\[\mathbf{J}^{\top} \mathbf{W}^{\top} \mathbf{W} (\mathbf{d} - \mathbf{d}^{obs})\]

Parameters:

• m (numpy.ndarray) – model

• f (SimPEG.fields.Fields) – fields object