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MathGroup Archive 2003

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Re: Plotting intersections

  • To: mathgroup at smc.vnet.net
  • Subject: [mg40305] Re: [mg40285] Plotting intersections
  • From: Dr Bob <majort at cox-internet.com>
  • Date: Sun, 30 Mar 2003 20:14:42 -0500 (EST)
  • References: <200303300907.EAA16144@smc.vnet.net>
  • Reply-to: majort at cox-internet.com
  • Sender: owner-wri-mathgroup at wolfram.com

Solve[Equal @@ {3x + 5, x^2}, x]

{{x -> (1/2)*(3 - Sqrt[29])}, {x -> (1/2)*(3 + Sqrt[29])}}

Bobby

On Sun, 30 Mar 2003 04:07:47 -0500 (EST), AngleWyrm 
<no_spam_anglewyrm at hotmail.com> wrote:

> Here's two plots, one linear and one not so linear ;)
>
> Plot[ {3x+5, x^2}, {x, -10, 10} ]
>
> And I want to know the intersection points of the two expressions.
>
> Is there a simple way to do this, and is it extensible to three or four
> expressions?
>
>
>
>



-- 
majort at cox-internet.com
Bobby R. Treat



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