コード例 #1
0
ファイル: chart.py プロジェクト: BrentBaccala/sage
    def __init__(self, domain, coordinates='', names=None, calc_method=None):
        r"""
        Construct a chart.

        TESTS::

            sage: M = Manifold(2, 'M', field='complex')
            sage: X.<x,y> = M.chart()
            sage: X
            Chart (M, (x, y))
            sage: type(X)
            <class 'sage.manifolds.differentiable.chart.DiffChart'>
            sage: assumptions() # no assumptions on x,y set by X._init_coordinates
            []
            sage: TestSuite(X).run()

        """
        Chart.__init__(self,
                       domain,
                       coordinates=coordinates,
                       names=names,
                       calc_method=calc_method)
        # Construction of the coordinate frame associated to the chart:
        self._frame = CoordFrame(self)
        self._coframe = self._frame._coframe
コード例 #2
0
ファイル: chart.py プロジェクト: ipozdnyakov/sage
    def __init__(self, domain, coordinates='', names=None):
        r"""
        Construct a chart.

        TESTS::

            sage: M = Manifold(2, 'M', field='complex')
            sage: X.<x,y> = M.chart()
            sage: X
            Chart (M, (x, y))
            sage: type(X)
            <class 'sage.manifolds.differentiable.chart.DiffChart'>
            sage: assumptions() # no assumptions on x,y set by X._init_coordinates
            []
            sage: TestSuite(X).run()

        """
        Chart.__init__(self, domain, coordinates=coordinates, names=names)