From the developer: "AceIT Grapher is a comprehensive, easy to use graphing package. Its 2D graphing capabilities encompass rectangular, polar, or parametric graphs. Once a graph is plotted, you can exhaustively analyze it by finding its zeros, maxima, minima, and drawing its tangents or derivative. You may even proceed with one of the countless calculus features: finding the area bounded under a curve, area bounded between two curves, volume of revolution, surface of revolution, arc length, center of mass, etc...And of course, you can tweak the appearance of the graph to your liking by changing its color, style, or line width. Not only can your plot 2D graphs but you also can generate beautiful 3-D surfaces with the ability to rotate the plots and create multiple views. The program also features a unique calculation workspace where you can directly enter your expression to be evaluated, featuring user-defined variables, constants, conversions, functions, and niceties such as colorized syntax and intelligent pop-ups. Best of all, the seamless integration between graphing and calculations will greatly increase your productivity."