SimPEG.maps.ExpMap.inverse#
- ExpMap.inverse(D)[source]#
Apply the inverse of the exponential mapping to an array.
For the exponential mapping \(\mathbf{u}(\mathbf{m})\), the inverse mapping on a variable \(\mathbf{x}\) is performed by taking the natural logarithms of elements, i.e.:
\[\mathbf{m} = \mathbf{u}^{-1}(\mathbf{x}) = log(\mathbf{x})\]- Parameters:
- D
numpy.ndarray A set of input values
- D
- Returns:
numpy.ndarrayA
numpy.ndarraycontaining result of applying the inverse mapping to the elements in D; which in this case is the natural logarithm.