(11C) CUBIC EQUATION

06092018, 10:34 PM
Post: #8




RE: (11C) CUBIC EQUATION
(06092018 07:50 PM)Dieter Wrote:(06092018 11:49 AM)Gamo Wrote: B Display 3 R/S 0.25 // D is greater than or equal zero go ahead with R/S Most probably some sort of discriminant, either of the original cubic, some reduced cubic (if that's how he's computing the root, I didn't read the code) or of the quadratic after deflation. If it is >=0 the remaining two roots are real, else they are complex. I'd bet it's the discriminant of the deflated quadratic, i.e., the equivalent of b^24*a*c in the classical formula for the roots of a quadratic equation (not the a,b,c he uses in his instructions). V. . All My Articles & other Materials here: Valentin Albillo's HP Collection 

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