est l'opérateur linéarisé (ou opérateur tangent) :math:`\mathbf{H}` de
:math:`\mathcal{H}` autour du point de vérification choisi.
+.. ------------------------------------ ..
+.. include:: snippets/Header2Algo12.rst
+
+.. include:: snippets/FeaturePropDerivativeNeeded.rst
+
+.. include:: snippets/FeaturePropParallelDerivativesOnly.rst
+
.. ------------------------------------ ..
.. include:: snippets/Header2Algo02.rst