### Sage

Sage is a free open-source mathematics software system licensed under the GPL. It combines the power of many existing open-source packages into a common Python-based...

- Sage supports symbolic maths through Maxima
- Sage needs programming language skills, it doesn't support well symbolic math.

## Mathematica Comments

## Good app but...

The biggest problem with Mathematica, is that it's not an open source app. I don't mean it's a problem for the money that it needs to buy it, but if you want to watch the errors in one chaotic system you cannot see the source to understand (find) the function that it produces the errors. (Sorry for my bad english).

When i try to communicate with Wolfram to give me the source code for sth like that, they send me an e-mail which it was say "Its company property"

So i refuse to go on with mathetica..

Just a tool for amateurs, not for professionals.

Mathematica is a powerful piece of software, closed source or open. Not all applications are open-source, and you can't expect them to "give you" the source code. It

iscompany property, and how else do you expect them to keep employees if they give away their source code for free? You should find some examples of the uses of Mathematica, it's quite useful. They also provide support for their product, as do most all software companies.I’m agree with NightHeron there is no good reason in 2018 to use close source software. A company can exist with open-source product. It’s a shame universities promote this kind of software.