A new update release 1.1.0.2 is available to download from the app store for windows phone. This release fixes a bug when plotting 2D graphics of cartesian and parametric functions. In some devices the application freezes while attempting to plot the graphic functions. The app web site link (in the Reviews and support page) was also fixed to point to the new location, and support by e-mail is available too from this page. It is strongly recommended the upgrade to this version for users of the previous versions. If you continue to find problems in viewing graphs of functions, please tell us.