SMath Studio is a comprehensive mathematical notebook program, similar to Mathcad but entirely free for personal or commercial usage.

SMath Studio is a comprehensive mathematical notebook program, similar to Mathcad but entirely free for personal or commercial usage. Although it's aimed very much at engineers and scientists, the program can be immediately useful to anyone. A lot of people find it hard in making handy notes and so here these apps works out best to take math notes.List of some apps that will help you in jotting down your notes. Notability: A powerful note taker app to note all the documents, sket. The Word for Mac and Word for Windows desktop applications. See instructions on this page for that use. The Word app on your iPad. See instructions on our add-ins page for that. MathType with macOS Mojave (or later): The first time you use MathType with any Office application on Mojave or later OS versions, you'll see this dialog.

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Although it's aimed very much at engineers and scientists, the program can be immediately useful to anyone. Just click anywhere on the paper-like interface, type a simple math expression - 2+2= - and as soon as you hit the equals key, the answer appears.

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You can do that anywhere, but one immediate SMath plus is that it displays what you're typing using the appropriate mathematical notation, rather than just a string of characters.

The program also supports just about every function you could ever need, and plenty you won't. To try that out, type Sin. As soon as you press 'S', SMath pops up a list of everything it thinks you might want to type. Sure enough there's sin and sinh, but you also get sec and sech, sqrt, solve(2), solve(4), submatrix, sum(1), sum(4), and a host of measurement units, amongst other things (Angstrom, BTU, byte, dB, deg, dpi, dyne and more).

SMath Studio can also solve differential equations, run calculations on matrices and vectors, find roots of polynomials and functions, handle hyperbolics, complex numbers and trigonometry, even run simple programs, displaying graphics, working with strings and files.

Assorted plugins help you do much more. Bundled examples extend the program to work with images, plot graphs, maybe save the results as images or HTML.

There's a lot to learn, but SMath Studio provides several examples to get you started. Click Tools > Snippet Manager > Examples and double-click anything interesting to take a look.

Verdict:

An amazing math tool, a must-have for engineers and scientists everywhere. (And it's not bad as a quick expression evaluator, either.)