Tips 2012 iPad App Guide #42: QuickGraph | TPACK iPad Project In Schools (TIPS) - 5 views
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John Evans on 17 May 12"QuickGraph is simply the best graphing calculator app for the iPhone and iPad. Using a simple visual & touch interface, this app makes it easy to enter, edit, and visualise 2D and 3D algebraic equations and inequalities (optional) in all standard coordinate systems. "