From the developer: "MoNooN Grapher 3DR is the simple software that draws and shows the graph of the 3-dimensional mathematical functions in rectangular coordinates. If you input equations, choose colors, you can see the graph. MoNooN Grapher 3DR enables you to modify the graph color, background color and etc. And through the panel, you are able to modify the ranges and steps. Also you can view the window in full-screen mode, and save as bitmap file."