Have you ever plot graph? So you know that it is too hard to do it using only paper and pen. MasterGraph can solve you problem. MasterGraph plots graphs of both simple and exceedingly complex mathematical functions. MasterGraph is the easiest way to plot and analyze graphs. It saves and prints images of graphs, zooms in/out. Screen keyboard lets you to type expressions easy and fast. There are 5 patterns of the most general types of functions such as "line", "parabola", "hyperbola", etc. Canvas has rich settings of appearance: color, spacing, fonts.