WolfCalc

WolfCalc is a light minimal front end to the powerful Wolfram Alpha Computational Knowledge Engine, it is one of the most powerful calculators in the world. Some say it is the ultimate homework helper, as it is capable solve complex mathematical problems - giving both the result as showing the steps taken and the rules used in order to get the end result. WolfCalc has a clean, distraction free user interface, which allows you to focus on your work. The interface can be resized by dragging the corners with the mouse, so it will fit nicely next to other programs.