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Re: RealOnly

  • To: mathgroup at smc.vnet.net
  • Subject: [mg86645] Re: [mg86612] RealOnly
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Sat, 15 Mar 2008 17:45:49 -0500 (EST)
  • Reply-to: hanlonr at cox.net

Plot[Sign[x]*Abs[x]^(1/3), {x, -1, 1}]

y /. ToRules[Reduce[y^3 == x, y, Reals]]

Root[#1^3 - x & , 1]

Plot[%, {x, -1, 1}]

A slightly updated package is at 
http : // library.wolfram.com/infocenter/MathSource/6771/


Bob Hanlon

---- Sergio Miguel Terrazas Porras <sterraza at uacj.mx> wrote: 
> Hi group:
> 
> To do things like Plot[x^(1/3),{x,-1,1}] one had to load the package
> RealOnly in the old days in order to get the complete graph.
> 
> Now one gets the message that says that the package is obsolete and that
> it may cause a conflict with the new functionality.
> 
> How does one get the complete graph without loading this package in v.
> 6.0?
> 
> 
> 
> Thanks,
> 
> Sergio Terrazas
> 
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