[FIXED] Add basic quadratics solver library

[PPPDUD]

This is a pull request to add the Quadratics library for Snap!, written entirely using Snap!'s GUI functionality.

I created the aforementioned library to help solve quadratic equations (learn more) in the form ax^2+bx+c=0, using a, b, and c as parameters.

In order to allow for the usage of complex numbers in calculations, the library will automatically setup the complex numbers library as needed.

Some of the blocks provided with this library:

Note: I wrote this library in a slightly modified Snap! 10.2.5, but I've found that it works on the latest unmodified builds as well.

[cymplecy]

FYI - most unsolicited PRs are rejected (this applies to a large number of opensource projects)

Much better to have a discussion on the Snap forum first and then see if your code would be welcomed or not :)
https://forum.snap.berkeley.edu

[PPPDUD]

FYI - most unsolicited PRs are rejected (this applies to a large number of opensource projects)

Much better to have a discussion on the Snap forum first and then see if your code would be welcomed or not :) https://forum.snap.berkeley.edu

I see, thanks.

I wanted to avoid using the Snap! forums, because I have a history of getting very angry at people on online forums (followed by spewing nonsense) and I didn't want to do that anymore.

Should I close this PR, or should I wait for a proper response before doing so?

[cymplecy]

I'm trying to avoid you wasting your time - do with my suggestion what you will :)