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Homework Help: How to plot complex vectors in Mathcad? (Electrical)

  1. May 25, 2012 #1
    1. The problem statement, all variables and given/known data

    I have to plot the following complex numbers into the complex plane:
    X_C=0-1350i
    X_L=0+980i
    R_L=100+0i
     
  2. jcsd
  3. May 28, 2012 #2
    Plot Re(complex number) in x-axis and Im(complex number) in y-axis
    Set the trace type for each value as 'points'
     

    Attached Files:

  4. May 28, 2012 #3
    Thank you! How do i make them vectors on the graph? You know, a line with an arrow.
     
  5. May 28, 2012 #4
    It is like the "line" traces does not work?

    I need to tell mathcad that i want a line from 0,0 to X.C
     
  6. May 28, 2012 #5
    Mathcad plots require that you specify all of the points on a line trace; it doesn't default to the origin. Consequently, you have to convert each of your complex numbers to a vector (with 0 as the first element) and then plot those vectors. Alternatively, you could create a function that takes a complex number, take the real or imaginary part and stacks it with zero - then plot the result directly.

    See the attached worksheet for an example. It also shows how to use Mathcad's Math Style feature.
     

    Attached Files:

  7. May 28, 2012 #6
    Wow, thank you so much Nemo!
     
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