Expresso is a capable text editor that enables you to make calculations on your Mac. This application provides you with an intuitive interface, lets you use a wide variety of math functions and operators, and offers you accurate results within a moment.
Before starting your writing, I recommend you to read the information and watch the video tutorials provided on the homepage of the developer. This program has a certain pattern you need to use in order to get the exact results you need. For instance, when it comes to writing expressions, you need to include the math operators and numbers within brackets.
This program might prove to be of good use when calculating your monthly expenses, garage sell income, and many others. Once you finish writing your calculations, the app allows you to export or print the document directly from its interface.
Another aspect I like is that the app also features a spell checking option. Plus, it highlights equations results, lets you change font style and size, and allows you to paste text content from third-party apps.
In conclusion, I should say it's worth installing this free program on your Mac if you need a feature-rich calculator app.