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Mathematica IF BLOCK

  1. Feb 28, 2009 #1
    Hello,

    I am a beginner using Mathematica. I would like to know how to express for example a function that depends on three variables and to calculate it using a IF BLOCK.

    I have the following function:

    a(y,w,d)=(acos((w-y)/d)*d^2-sin(acos((w-y)/d))*(w-y)*d)

    and I want to evaluate it, to evaluate this function I have to write a IF BLOCK like the following

    IF (w-y)<d then
    IF (w-y)>0 then
    Gnuplot muss evaluate a(y,w,d)
    else is pi*d^2
    else cero.

    I have attempt it. But only it works when I put a(y,w,d) if only depends on y, but it depends also from w and d.
    Might anybody help me?
     
  2. jcsd
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