Quadratic equation discriminant method

[Alfio Caprino]

I can't find a method to solve a quadratic equation with the delta method. I there is, could someone tell me how to do it? If not, is possible to implement it?

[Axel Kramer]

You can use Solve for example:

Solve(x^2-x-1==0,x)

or the Roots and NRoots functions:

example:

Roots(3*x^3-5*x^2+5*x-2)

[Axel Kramer]

Can you post an example snippet of your program?

[Axel Kramer]

Probably this commit will solve this issue?

https://bitbucket.org/axelclk/symja_android_library/commits/75150524e937ca2f775b4ead4d657ccb5f532002

[Alfio Caprino]

How can I download the updated version with this commit?

When I evaluate an equation I obtain (for example):

Solve(x^2+2*x-3==0,(x))

-3+x^2+2x==0 x^2+2x-3==0 x^2+2*x==3

Solve(-3+x^2+2x==0,x) Solve(x^2+2x==3,x) {{x->-3}, {x->1}}

I was wandering if there is a way to evaluate it trough the discriminant method.

[Axel Kramer]

Commited:

https://bitbucket.org/axelclk/symja_android_library/commits/e44fc27885ab74794cc74692ccb3d47af2168c65