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Homework Help: Plot the plane x+z=0 in mathematica

  1. Oct 17, 2013 #1
    How do I plot the plane x+z=0 in mathematica on the xyz plane
  2. jcsd
  3. Oct 17, 2013 #2


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    Staff: Mentor

    If you have Mathematica 9, just try
    Code (Text):
    = plot x+z=0 plane
    (don't forget to start with an equal sign).
  4. Oct 18, 2013 #3
    This is not correct tag plus in plot x+z is protected
  5. Oct 18, 2013 #4


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    Staff: Mentor

    What version of Mathematica do you have? Student version or Full version?
  6. Oct 19, 2013 #5


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    Science Advisor
    Gold Member
    2017 Award

    I'd suggest to use ParametricPlot3D (see attachement). The Student and full version of Mathematica are usually the same in function. I've the home edition of Mathematica 9 on my private laptop and it's absolutely identical with the full version on our institute's computers.

    Attached Files:

  7. Oct 19, 2013 #6
    Again how to plot x+z=0 in mathematica
  8. Oct 19, 2013 #7
    In Mathematica, any version, Plot3D wants an expression or function giving z values as a function of x and y coordinates so... turn x+z==0 into x==-z into -(x+0*y)==z (or just plot -x) and now you have a function giving z values to plot.

    In[1]:= Plot3D[-(x + 0*y) (*==z*), {x, -3, 3}, {y, -4, 4}]
    Out[1]= ...PlotSnipped...

    Carefully check some points on the surface to verify this is correct.
    And, if you don't already know... this ---> (*==z*) <--- is a comment in Mathematica code.
  9. Oct 22, 2013 #8
    Thank you
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