Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Forcing mathematica or geo sketch to graph EC

  1. Jun 6, 2006 #1
    Hello, I'm trying to experiment with eliptic curves a little, but I have a problem with graphing elliptic curves. For example, neither mathematica nor geometry sketchpad graph negative values of curves. Is there anyway to force mathematica or geo sketchpad to plot also negative values of x?
    F. ex, when I try to graph y=(x^3-x)^(1/2) it plots only positive values for function. Any ideas?

    Thanks,
     
  2. jcsd
  3. Jun 6, 2006 #2

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    Well, how about doing two functions:y=(x^3-x)^(1/2) and
    y=-(x^3-x)^(1/2)?
     
  4. Jun 6, 2006 #3

    Mathematica:
    [tex]\text{Plot[} ((-\sqrt{x^3 - x}), (\sqrt{x^3 - x})) \text{, (x,-10,10)}][/tex]

    Where the brackets '()' are actually '{}'.
     
    Last edited: Jun 6, 2006
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Forcing mathematica or geo sketch to graph EC
Loading...