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Math Help - New commands in Mathematica 7

  1. #1
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    Question New commands in Mathematica 7

    Hi guys;

    Does anyone know how to plot a complex inequality in Mathematica 7 ?, In previous version there was a command ComplexInequalityPlot.

    Also, the new command to plot an inequality is RegionPlot, but there is a problem ? This new command need a lower and upper bound in plot ,i.e, {x,xmin,xmax}.On other hand , in previous version we could plot the inequlaity(ies) with specifying a constraints on bound such to let Mathematica to specify the region for inequality(ies) ??

    During my search, I found the following website :

    Download Mathematica package

    which contains a packages for complex plotting , but it doesn't work with me. Could anyone check please ?

    Any help will be appreciated .

    Thank you all
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  2. #2
    Super Member
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    Hi. Don't see what the problem is. You can either load the (obsolete) package containing ComplexInequalityPlot, or just use RegionPlot:


    << Graphics`InequalityGraphics`;
    ComplexInequalityPlot[1/2 <= Abs[z] <= 1, {z}]
    RegionPlot[1/2 <= Abs[z] <= 1 /. z -> x + I y, {x, -1, 1}, {y, -1, 1}]
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  3. #3
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    I'm still beginner in Mathematica. What is the obsolete package about the order InequalitySolve . In fact, where can I find a packages with their commands ?

    What about the package I put the link for it ? Does it work with you fine ?
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  4. #4
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    Quote Originally Posted by Lenardo View Post
    I'm still beginner in Mathematica. What is the obsolete package about the order InequalitySolve . In fact, where can I find a packages with their commands ?

    What about the package I put the link for it ? Does it work with you fine ?
    Ok Lenardo, this is what you do, anytime you need to know about something in mathematica, just type in the word and hit F1 right? That's what I did for that InequalitySolve and the help system gave me the info about it and said the functionality of this function has been replaced by the command Reduce but you can still use the function by loading the Algebra package. You don't have to download anything, just type the commands below and Mathematica will load the package from your disc. And also, sorry, but I'm not going to download a file needlessly onto my machine so can't help you with that link you gave.

    << Algebra`InequalitySolve`;
    InequalitySolve[x (x^2 - 2) (x^2 - 3) > 0, x]
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  5. #5
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    Thank you
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