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MATLAB problem

  1. Jun 1, 2012 #1
    I have such matlab problem: I create variables R1 RF R2 and w so:
    Code (Text):
    syms RF R1 R2 w
    then I write expression:
    Code (Text):
    3*R1*w*(RF + 200)/((R2*w*29*i + 3)*(3*R1*w - 2*i))
    which gives:
    Code (Text):
    (3*R1*w*(RF + 200))/((3*R1*w - 2*sqrt(-1))*(R2*w*29*sqrt(-1) + 3))
    why sqrt(-1) and not i???? furthermore? if I want real part of the expression and write:
    Code (Text):
    real(ans)
    it gives:
    Code (Text):
    3*real((R1*w*(RF + 200))/((3*R1*w - 2*sqrt(-1))*(R2*w*29*sqrt(-1) + 3)))
    can anyone please help me??
     
  2. jcsd
  3. Jun 4, 2012 #2
    anybody please
     
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