How to carry out engineering calculations

I don't know if this is the best place for this, but I'm not aware of an alternative...

This is not a question but a recommendation for a piece of free software. Similar to Mathcad there is a free program called SMath which can be found at

I have no involvement with this but have found it to be very useful and very impressive for a free tool. Its compatible with Mathcad which I use at work, so any ideas i work on at home i can use at there too without having to re-create them.

For anyone not familiar it is a symbolic calculation tool, I.e. you type the equations as you would write them (see attached pdf file)

Hope people find it useful!

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