simpeg.data_misfit.L2DataMisfit.deriv#

L2DataMisfit.deriv(m, f=None)[source]#

Gradient of the data misfit function evaluated for the model provided.

Where ${\varphi }_d(\mathbf{m})$ is the data misfit function, this method evaluates and returns the derivative with respect to the model parameters; i.e. the gradient:

$$\frac{\partial {\varphi }_d}{\partial \mathbf{m}}$$

Parameters:

m(n_param, ) numpy.ndarray

The model for which the gradient is evaluated.

Returns:

(n_param, ) numpy.ndarray

The gradient of the data misfit function evaluated for the model provided.