simpeg.maps.ParametricCircleMap.deriv#
- ParametricCircleMap.deriv(m, v=None)[source]#
Derivative of the mapping with respect to the input parameters.
Let
be the set of model parameters the defines a circle within a wholespace. The mapping :math:`mathbf{u}(mathbf{m})`from the parameterized model to all cells within a 2D mesh is given by:The derivative of the mapping with respect to the model parameters is a
numpy.ndarray
of shape (mesh.nC, 5) given by:- Parameters:
- m(
nP
)numpy.ndarray
A vector representing a set of model parameters
- v(
nP
)numpy.ndarray
If not
None
, the method returns the derivative times the vector v
- m(
- Returns:
scipy.sparse.csr_matrix
Derivative of the mapping with respect to the model parameters. If the input argument v is not
None
, the method returns the derivative times the vector v.