Solving a system of linear equations question.

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[EDIT: Wed Jun 15 04:15:02 UTC 2011 - Reformat - MKF]
hey . how i solve this linear equations (ODE) in matlab
x+y-2=-2z
3x+z=y+6
x+3y+4z-4=0
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John D'Errico
John D'Errico 2011-5-11
How is this an ODE? An ODE is a differential equation. Where are the derivatives?

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Sean de Wolski
Sean de Wolski 2011-5-11
[1 1 2;3 -1 1; 1 3 4]\[-2;6;4]

更多回答(2 个)

Laura Proctor
Laura Proctor 2011-5-11
First, set the equations up as matrices. So, if you had the following equations:
5*x + 2*y = 10
x = 2
You would convert this to matrix form:
Ax = b
A = [ 5 2 ; 1 0 ]
b = [ 10 ; 2 ]
Finally, you can solve for this system of equations in MATLAB using the BACKSLASH operator:
x = A\b
And x will contain the variables x and y. Just follow these steps to solve for your system. Good luck!

zizo
zizo 2011-5-11

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