The 1.1 version of ExpressionsinBar for Mac is provided as a free download on our website. This Mac download was scanned by our built-in antivirus and was rated as clean. The program belongs to Education Tools. This software for Mac OS X is an intellectual property of Alelvisoftware.
From the developer:
ExpressionsinBar is a simple menubar application which provides powerful computer-aided algebra computations. A mathematical expression entered in the popup window is immediately computed and the result is displayed in an associated subview window. With the drag-and-drop feature, results are easily copied into text editors such as Pages or Microsoft Word, or presentation programs such as Keynote or Microsoft PowerPoint. The algebra functionalities include: Constants (?, e, etc.
You may want to check out more software for Mac, such as Macnification, Trapcode Particular or LOGOComfort, which might be similar to ExpressionsinBar.