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MathGroup Archive 2006

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Re: SImple Plot3D issue

  • To: mathgroup at smc.vnet.net
  • Subject: [mg68611] Re: SImple Plot3D issue
  • From: David Bailey <dave at Remove_Thisdbailey.co.uk>
  • Date: Fri, 11 Aug 2006 04:41:20 -0400 (EDT)
  • References: <ebeb2c$ldm$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

jtolman at gmail.com wrote:
> I am trying to plot the 3D function e^-(x^2 + y^2) (x^2 + 2y^2)
> 
> Plot3D[e^-(x^2 + y^2) (x^2 + 2 y^2), {x, -3, 3}, {y, -3, 3}]
> 
> I get not machine-size real number errors.  When I try
> 
> f = e^-(x^2 + y^2) (x^2 + 2 y^2)
> 
> I get a Syntax::noinfo: insufficient information error, although the
> output looks like a valid textbook style equation.
> 
> I've tried several variations on input but can't figure out where the
> syntax mistake is.
> 
Try using E or the special character \[ExponentialE] - 'e' is just an 
ordinary variable.

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


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