Do you ever grab a calculator & the back of an envelope to work through an idea or problem that involves some math?




Calculist is described as 'Open source application that facilitates effective thinking. Write down your thoughts, ideas, and data in the form of lists. Focus your attention by zooming in to a specific list, and zoom out to see the broader context' and is an app in the office & productivity category. There are more than 10 alternatives to Calculist for a variety of platforms, including Web-based, Self-Hosted, Mac, Windows and Linux apps. The best Calculist alternative is Soulver. It's not free, so if you're looking for a free alternative, you could try OpalCalc or µCalc. Other great apps like Calculist are NoteCalc, Observable Notebooks, Blabr and Kajero.
Do you ever grab a calculator & the back of an envelope to work through an idea or problem that involves some math?




OpalCalc is a brand new type of calculator for the PC. As easy to use as Notepad or a word processor, OpalCalc allows natural language in the sum and multi-line support so you can go back and adjust your previous calculations on the fly.





Observable is a better way to code. Discover insights faster and communicate more effectively with interactive notebooks for data analysis, visualization, and exploration.





The Collaborative Computational Notebook Built for Modern Engineering. Enter math as it appears on paper, get instantaneous results, and share your calculations with colleagues and clients. No special syntax, no software, no headaches, no kidding.


Carbide is a new kind of programming environment that uses a notebook format with live coding features to facilitate development and debugging.


Iodide is a notebook programming environment for the web. Users can make use of JavaScript, Markdown, CSS and external resources to communicate ideas comfortably and efficiently through a minimalist notebook interface.





