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MathGroup Archive 2006

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RE: Solving the Cubic

  • To: mathgroup at
  • Subject: [mg71883] RE: [mg71859] Solving the Cubic
  • From: "Mark Harder" <harderm at>
  • Date: Sat, 2 Dec 2006 05:11:02 -0500 (EST)

	Symbolic solutions can be very error- and precision- sensitive (See
Press, et al, "Numerical Recipes.." for a trick that stabilizes quadratic
solutions.)  Do you know if Vieta's method designed to avoid numeric
Mark Harder

-----Original Message-----
From: dimitris [mailto:dimmechan at] 
Sent: Friday, December 01, 2006 3:22 AM
To: mathgroup at
Subject: [mg71883] [mg71859] Solving the Cubic

The following cell follows the Vieta's method for solving the cubic
equation complete with all the necessary steps and text explanations.
I really appreciate any kind of comments.

(code omitted ).

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