[Serious - programming] I need ideas for program features

Ok, I need some more inspiration guys...

I've finally added support for negative numeric literals (the last major omission that I had thus far).

I'm planning to add "stored subroutine" support (loads user-defined math equations from a file for later use) which promises to be awesome :D

But I still need more ideas, the cooler the better. Impress me.......

finding roots for "y = 0.6x² + -4x + -3"
using:
http://mathworld.wolfram.com/images/.../equation5.gif (pic courtesy of Wolfram)

0.6, -4 and -3 are stored into variables "a", "b" and "c" respectively through the config file...

Code:

---

./rpnsolve "=a b c dump"
dump:
[0] == 0.6
[1] == -4
[2] == -3
...
./rpnsolve "=b neg b b * 4 a c * * - sqrt - 2 a * /"
=-0.680532

./rpnsolve "=b neg b b * 4 a c * * - sqrt + 2 a * /"
=7.3472

---

The left-hand root is given in blue and the right hand one in green :D

Hurrah.

For once, I have not been mocked at for giving a suggestion.

Hurrah.

EDIT: I did not see woss's post above before I posted this - Coincidence for Hurrah :sick:

Moved. Please don't post technical questions in the General Discussion / Chit Chat forum.