Get started with <code>GraphLib</code>, an open source library for graphing mathematical functions, plotting points, and drawing line graphs in Android. Includes Java source code and the complete ...

Example Draw the graph of y = x 2 x 4 and use it to find the roots of the equation to 1 decimal place. Draw and complete a table of values to find coordinates of points on the graph.

But Tatsuo Horiuchi, a 74-year-old man from an area in Japan called Nagano Prefecture, has discovered how to make stunning works of art using Excel spreadsheets.