So I couldn't think of anything besides MatLab, which I used decades ago in university, but a quick google turned up some tools on the NCTM website, mostly designed for high school. Once on the site, search 'core math tools'. I don't know if any of them will do what you want, but they look like they might be interesting. (On my phone, so I can't even try them.)

...pronounced like the long vowel and first letter of the alphabet...