(11C) CUBIC EQUATION
06-10-2018, 08:50 PM
Post: #13
 Valentin Albillo Senior Member Posts: 1,100 Joined: Feb 2015
RE: (11C) CUBIC EQUATION
(06-10-2018 07:15 AM)Dieter Wrote:  So it can't be the discriminant of the original cubic equation (here D<0 means three real roots). But it looks like it's indeed some discriminant of a reduced quadratic.

Great insight on your part but that's exactly what I said in the very next paragraph of my previous post, which you choose not to quote for whatever reasons. I'll save you the trouble, here you are:

Valentin Albillo Wrote:I'd bet it's the discriminant of the deflated quadratic, i.e., the equivalent of b^2-4*a*c in the classical formula for the roots of a quadratic equation (not the a,b,c he uses in his instructions).

Also, I don't appreciate your attitude towards Gamo. It's great that you're helping him refine his program and correct the perceived programming errors to try and get a working program, very nice of you, but in my opinion you're doing it in a condescending, patronizing way which is completely out of place. Surely you can help him without that much smugness on your part.

There.
V.
.

All My Articles & other Materials here:  Valentin Albillo's HP Collection

 « Next Oldest | Next Newest »

 Messages In This Thread (11C) CUBIC EQUATION - Gamo - 06-09-2018, 11:49 AM RE: (11C) CUBIC EQUATION - Gamo - 06-09-2018, 12:34 PM RE: (11C) CUBIC EQUATION - Dieter - 06-09-2018, 12:54 PM RE: (11C) CUBIC EQUATION - rprosperi - 06-09-2018, 01:00 PM RE: (11C) CUBIC EQUATION - Massimo Gnerucci - 06-09-2018, 01:18 PM RE: (11C) CUBIC EQUATION - Dieter - 06-09-2018, 06:05 PM RE: (11C) CUBIC EQUATION - Dieter - 06-09-2018, 07:50 PM RE: (11C) CUBIC EQUATION - Valentin Albillo - 06-09-2018, 10:34 PM RE: (11C) CUBIC EQUATION - Dieter - 06-10-2018, 07:15 AM RE: (11C) CUBIC EQUATION - Valentin Albillo - 06-10-2018 08:50 PM RE: (11C) CUBIC EQUATION - Dieter - 06-10-2018, 09:17 PM RE: (11C) CUBIC EQUATION - Albert Chan - 07-20-2021, 10:12 PM RE: (11C) CUBIC EQUATION - Gamo - 06-10-2018, 02:42 AM RE: (11C) CUBIC EQUATION - Gamo - 06-10-2018, 02:36 PM RE: (11C) CUBIC EQUATION - Dieter - 06-10-2018, 03:34 PM RE: (11C) CUBIC EQUATION - Dieter - 06-10-2018, 09:35 PM RE: (11C) CUBIC EQUATION - Gamo - 06-11-2018, 02:16 AM RE: (11C) CUBIC EQUATION - Dieter - 06-11-2018, 07:04 AM RE: (11C) CUBIC EQUATION - Gamo - 06-11-2018, 08:19 AM RE: (11C) CUBIC EQUATION - Dieter - 06-11-2018, 08:19 PM RE: (11C) CUBIC EQUATION - Gamo - 06-12-2018, 07:02 AM

User(s) browsing this thread: 1 Guest(s)