SimPEG.regularization.JointTotalVariation.deriv2#
- JointTotalVariation.deriv2(model, v=None)[source]#
- Computes the Hessian of the joint total variation. - Parameters
- modelnumpy.ndarray
- Stacked array of individual models 
- vnumpy.ndarray,optional
- An array to multiply the Hessian by. 
 
- model
- Returns
- numpy.ndarrayor- scipy.sparse.csr_matrix
- The Hessian of joint total variation with respect to the model times a vector or the full Hessian if v is None.