[dmitrygr]

https://dmitry.gr/89

you can also "add to homescreen" on iOS/android and it acts like a native app & works offline. symbolic math - computer algebra system, integration/differentiation, finance app in rom, 3d graphs.

(emu is not my work, i only packaged it for PWA and host it for myself to use, but you are welcome to as well)

[spwa4]

Sure (and thanks for the link, do you have a TI-82 as well?) but it won't "last". You'll take the site offline, sooner or later and I can't just store an exe locally and use it in 20 years. I'll lose the ability to install it on phones.

[dmitrygr]

That is my personal site, I do not expect to take it down, since that is where I post my projects. But also, you can just save it from there entirely, and serve from your own site -- there is no server-side part to it.

no 82. I only liked the ti-89

[phonon]

Derive is more sophisticated. TI-89/92/Nspire is close though.

[dmitrygr]

Derive doesn’t run on my iPhone sadly