DreamCalc is a utility application that provides a fully featured and handy alternative to using a separate hand-held graphing calculator when you are working on your computer. Because it is software, it runs alongside your other applications, allowing you to copy values, lists, expressions and graphs. This scientific calculator supports natural fractions, extended trigonometry, conversions between metric and US or Imperial measures, scientific constants, true order mode, engineering and base-n modes. It can run in the system tray and provides a virtual paper roll to keep a record of your calculations. It supports skins.

The license of this software is Freeware, you can free download and free use this calculator software.