Graphing Calculator AR funktioniert nicht

Graph functions, implicit relations, parametric curves and surfaces, inequalities, points, vectors, contour and density plots, color maps, vector fields, ordinary differential equations, surfaces of revolution, coordinate transformations, conformal maps and complex-valued curves, surfaces, and ODEs.  Graphing Calculator lets you visualize algebra and calculus interactively and experience 3D graphs in augmented reality on devices which support AR.  Solve equations numerically, graphically, or symbolically.  Use rectangular, polar, cylindrical, or spherical coordinates.  "Graphing Calculator is one of the best examples of elegant power and clean user interface of any application I've seen". - Bruce Horn, creator of the Macintosh Finder.