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Simple Mathematica question

  1. Mar 23, 2015 #1

    joshmccraney

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    Hi PF!

    If I'm trying to plot something in mathematica, say ##y=x^2## and then I want to find out what ##y## is when ##x=3##, how would I do this?

    Thanks so much!

    I should add, the function I'm inputting in is a numerical solution to a non-linear ODE, so it's not as easy as simply inputting ##3^2## in the above example.
     
  2. jcsd
  3. Mar 24, 2015 #2

    joshmccraney

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    nevermind, I'm good!
     
  4. Mar 31, 2015 #3
    Share your solutions for future reference!
     
  5. Apr 1, 2015 #4

    joshmccraney

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    Sorry, I actually needed to do something different, but I solved that.
     
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