Grapher Lite is another demonstration of the fact that math is fun. It is a simple mathematical function plotter that utilizes math functions to draw nice figures in Android based tablets and phones. It is available at the Google Play Store.
In a single line, compose freely a series of at most 10 functions of a single variable (x), separated by semi-colons and press enter to plot them. You may then export the drawn figure to a PNG image file. The mathematical format used for expressing functions is similar to that used in spreadsheet applications.Only difference is that an expression like -x^2 is treated as (-x)^2 instead of -(x^2). It is recommended to employ braces to avoid confusion. Different standard math functions are included.