1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Matlab - graphing multivariable functions

  1. Jan 16, 2008 #1
    I am taking a vector calculus course and am having trouble figuring out how to graph things in Matlab to verify my answers.

    Here is exactly what I want to do:
    I want to graph side by side two different graphs simultaneously, so I can compare them.

    I will give you the equations of the two planes I am attempting to graph side by side. If someone could write the code for me to graph these side by side, then I am sure I can play around with the code and figure out how to graph other functions.

    I want to graph side by side the planes:
    Z = (-1/4)x + y - 19
    and
    Z = (-1/3)x + (2/3)y - 4

    Thanks in advance!
     
    Last edited: Jan 16, 2008
  2. jcsd
  3. Jan 17, 2008 #2
  4. Jan 17, 2008 #3
    Type "help subplot". This tells you how to plot multiple graphs in the same figure for convenient pictures
     
  5. Jan 17, 2008 #4
    I have tried that, but I still don't understand how to do it.

    If someone could write the code to do what I am trying to do for those two equations I gave, then I would be EXTREMELY grateful.
     
  6. Jan 17, 2008 #5
    Is this enough? It will show you how to plot two vectors next to each other.

    Code (Text):

    t = 0:0.01:10;
    f1 = sin(t);
    f2 = cos(t);


    subplot(1,2,1);
    plot(f1);

    subplot(1,2,2);
    plot(f2);
     
     
  7. Jan 18, 2008 #6
    Awesome! Thanks!
     
  8. Jan 18, 2008 #7
    Try explot also.

    ezplot((-1/4)x + y - 19) I think that should work. If not try
    plot3d((-1/4)x + y - 19),x,-10,10,y,-10,10) x and y ranges are -10 to 10
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Matlab - graphing multivariable functions
  1. Matlab functions (Replies: 0)

  2. Matlab functions (Replies: 0)

  3. MATLAB function (Replies: 1)

Loading...