Python TensorField._del_derived Examples

Example #1

File: diff_form.py Project: yunboliu27/sage

    def _del_derived(self):
        r"""
        Delete the derived quantities.

        TESTS::

            sage: M = Manifold(3, 'M')
            sage: a = M.diff_form(2, name='a')
            sage: a._del_derived()

        """
        TensorField._del_derived(self)
        self.exterior_derivative.clear_cache()

Example #2

File: diff_form.py Project: mcognetta/sage

    def _del_derived(self):
        r"""
        Delete the derived quantities.

        TESTS::

            sage: M = Manifold(3, 'M')
            sage: a = M.diff_form(2, name='a')
            sage: a._del_derived()

        """
        TensorField._del_derived(self)
        self.exterior_derivative.clear_cache()

Example #3

    def _del_derived(self):
        r"""
        Delete the derived quantities.

        TESTS::

            sage: M = Manifold(2, 'M')
            sage: a = M.automorphism_field(name='a')
            sage: a._del_derived()

        """
        # First delete the derived quantities pertaining to the mother class:
        TensorField._del_derived(self)
        # then deletes the inverse automorphism:
        self._inverse = None

Example #4

File: automorphismfield.py Project: saraedum/sage-renamed

    def _del_derived(self):
        r"""
        Delete the derived quantities.

        TESTS::

            sage: M = Manifold(2, 'M')
            sage: a = M.automorphism_field(name='a')
            sage: a._del_derived()

        """
        # First delete the derived quantities pertaining to the mother class:
        TensorField._del_derived(self)
        # then deletes the inverse automorphism:
        self._inverse = None