Maths Tutorial

Good attempt but needs some more work

5 star for trying to start developing apps.time to time crashing problem.try to maintain interface.dont try to alerrt pop up message when apps starts.its irritating.try to maintain interface of calculator.its not look like calculator.its looking like entering the input value in c compiler screen and producing output.maintain standard.of apps. some of the topic of ur math tutorial is missing in big screen.try to maintain ur apps in different screen.u need a liitle bit more effort to maintain ur apps.