[BlindMath] Formula.

[Ray McAllister]

Hi, so, I heard that someone has come up with a formula, albiet long, to
find the 3 roots of any cubic equation, I.E. ax^3 + bx^2 + cx + d.  I've run
across it online, but never one that's in a Pretext Mathjax form that I
could really work with.  Does anyone know where I could find it, or, could
just email it to me in either Braille code or some doable system, please?

 

Thanks, 

Ray.