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Homework Help: Solving System of Equations Using Matrices

  1. Jul 12, 2011 #1
    1. The problem statement, all variables and given/known data
    Is it possible to solve this system of equations using matrices?
    x^2 + y^2 = 42
    2. Relevant equations

    3. The attempt at a solution
    I solved the system of equations using the following MATLAB code. I'm kind of confused by the results. Are there two x values and two y values? I don't know how to interpret what it says x and y are equal to. Thanks in advance.

    Code (Text):
    x =
    y =
  2. jcsd
  3. Jul 12, 2011 #2


    User Avatar
    Homework Helper

    No, matrices are applied to linear systems of equations.

    There are four solutions: (x,y) pairs

    x=-6.216 and y=1.832,
    x=6.478 and y=-0.181 and so on.

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