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Re: What am I doing wrong with this code?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg82538] Re: What am I doing wrong with this code?
  • From: David Bailey <dave at Remove_Thisdbailey.co.uk>
  • Date: Wed, 24 Oct 2007 04:24:44 -0400 (EDT)
  • References: <ffkffr$spa$1@smc.vnet.net>

sean_incali wrote:
> I think I'm having a brain fart. Seriously...
> 
> Plot[{1/(1 + y^2), (1/y - 1)^(1/2)}, {y,  0, 5}]
> 
> What is wrong with that code? Maybe it's not solvable in mathematica?
> 
> I'm trying to plot nullclines of a system of ODEs. and those function
> up there are them. I just can't get mathematica to plot them in the
> same graph.
> 
> I get an error message saying...
> 
>>From In[22]:=
> (1/y - 1)^(1/2)  is not a machine-size real number at y =
> 1.0000001666666667`.
> 
> Any help is appreciated.
> 
> sean
> 
> 
I get a nice plot with 2 curves on 6.01. My guess is that you have hit 
one of those gremlins that produce a cell that looks OK, but actually 
has a broken structure. Try typing the line in again. If it is still 
wrong, which version of Mathematica are you using?

David Bailey
http://www.dbaileyconsultancy.co.uk


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