ExpressionsinBar for Mac allows you to quickly calculate algebra problems directly from your OS X Menu Bar. It's a capable app that will be useful to algebra students wanting a more advanced desktop calculation tool, as well as for amateur scientists. Don't expect to be able to do rocket science with it, though.
After installing ExpressionsinBar for Mac, you can use it directly through your Mac Menu Bar, which makes it extremely accessible. Input your mathematical expression into the interface and the app performs the calculations instantly. The results are accurate and can be conveniently copied from the app into text editors like Pages and Keynote or presentation software like Microsoft PowerPoint. The app can handle complex expressions, but its features and interface are not optimized for professional users; advanced mathematicians can find more suitable apps for them on the market.
If you need a streamlined calculator for solving algebra problems, ExpressionsinBar for Mac is a good choice. Its excellent performance and short learning curve make it a valuable asset to any student or teacher involved in mathematics. That said, professionals should look for an app with more features.