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Re: Re: Re: plot hyperbola (OT)

  • To: mathgroup at
  • Subject: [mg57386] Re: [mg57343] Re: [mg57292] Re: [mg57287] plot hyperbola (OT)
  • From: DrBob <drbob at>
  • Date: Thu, 26 May 2005 04:31:31 -0400 (EDT)
  • References: <> <>
  • Reply-to: drbob at
  • Sender: owner-wri-mathgroup at

I assume you're converting cells to InputForm before copy/paste into Mathematica?

If you type in x^2, does the problem occur, or only if you paste it in?

Either way, it sounds like a good reason not to use Thunderbird.


On Wed, 25 May 2005 06:02:50 -0400 (EDT), Murray Eisenberg <murray at> wrote:

> This is a bit off-topic, but it's been an annoyance for a while now....
> I've been having difficulty copying code such as that below from my
> e-mail client into Mathematica: The e-mail client, Thunderbird, displays
> expressions such as "x^2" in a 2-dimensional form, with a superscript
> (and no caret); when I copy from there and paste into Mathematica, of
> course I get just "x2" -- no superscript and no caret.
> I do have my e-mail client set so as not to display HTML as such.
> Any ideas?
> David Park wrote:
>> You could use the ImplicitPlot routine. First you have to load the
>> Graphics`ImplicitPlot` package that is in the StandardPackages.
>> Needs["Graphics`ImplicitPlot`"]
>> ImplicitPlot[
>>   x^2 + 3 x^2 y^3 + 67 x^4 y^2 + 34 == 0, {x, -50, 50}, {y, -30000, 0},
>>   AspectRatio -> 1]
>> That is a difficult curve and I had to 'fish' around to find it. I also
>> changed the AspectRatio of the plot to 1 to avoid getting very high and very
>> narrow plots that went off screen. There may be other branches of the curve.
>> You can plot quadratic equations the same way and they will be easier.
>> For quadratic equations you may want to look at the ConicSections package at
>> my web site below. It will generate a parametrization for any conic section
>> which you can use to plot with ParametricPlot. It also will give the type of
>> conic, its parameters and how to transform it to standard form.
>> David Park
>> djmp at
>> From: bd satish [mailto:bdsatish at]
To: mathgroup at
>>   HI, i am a beginner. Will u please tell me how to plot
>> hyperbola,parabola,ellipse and circle in their standard forms
>>    x^2/a^2 + y^2/b^2 = 1
>>   x^2/a^2 -- y^2/b^2 ==1 etc.
>>  Also how do you plot a general curve (y versus x), say
>>     x^2 +3 x^2 y^3 +67 x^4 y^2 +34==0
>>  *without solving explicitly for y* ( or x)
>>   Please help

DrBob at

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