MathGroup Archive 2006

[Date Index] [Thread Index] [Author Index]

Search the Archive

Why is the negative root?

(Reduce[{z^3-z^2- b z-1==0, b>0, z>0}, z] //ToRadicals)/.b->3.//Chop

gives a negativ z:

z == - 0.414214

What am I doing wrong?

  • Prev by Date: Animation crash
  • Next by Date: fast replace for matrix minor
  • Previous by thread: Re: Re: Animation crash
  • Next by thread: Re: Why is the negative root?