Plotter Free (com.speedymarks.android.plotterFree) on Google Play
Plot graphs of functions. Enter your formula and the range you want to plot.Features:- By separating the formulas with semicolons you can draw more than one function.- Turn the phone to quickly jump between graph and formula.- Tap the chart to flip through the themes.- E-Mail the formulas, charts and let others open them in the plotter web application. Ad supported freeware