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MathGroup Archive 2007

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Re: What to do in v. 6 in place of Miscellaneous`RealOnly

  • To: mathgroup at smc.vnet.net
  • Subject: [mg76729] Re: What to do in v. 6 in place of Miscellaneous`RealOnly
  • From: Helen Read <read at math.uvm.edu>
  • Date: Sat, 26 May 2007 04:41:09 -0400 (EDT)
  • References: <f33ork$l7l$1@smc.vnet.net> <f36f3o$894$1@smc.vnet.net>

Jens-Peer Kuska wrote:
> Hi,
> 
> just try it ...
> 
> Plot[] will remove all not-plotable values and
> 
> Plot[x^(1/3), {x, -2, 2}]
> 
> show nothing on the negative part of the x-axes
> and
> Plot3D[(x + y)^(1/3), {x, -2, 2}, {y, -2, 2}]
> will be cutted along the x==-y line.
> 
> So, do nothing and remove the RealOnly package.

Well, no, the whole point is that we want to plot x^(1/3) or x^(3/5) or 
whatever for both negative and positive values of x. This used to be 
easy with the now obsolete package Miscellaneous`RealOnly` (which we 
might resort to using and just ignore the "obsolete package" message).

--
Helen Read
University of Vermont


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