How to solve system of equation in Matlab ?

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How to solve the system of equations that the number of variable is fewer than the number of equations. for example:
x + y + 2z = 0,
2x + y -z = 0.
the result is
x = 3t,
y=-5t,
z=t.(t is parameter)
thanks you very much.

Accepted Answer

Matt J
Matt J on 3 Jan 2014
Or numerically,
null([1 1 2; 2 1 -1])

More Answers (1)

Azzi Abdelmalek
Azzi Abdelmalek on 3 Jan 2014
sol=solve('x + y + 2*z = 0','2*x + y -z = 0','x','y')
x=sol.x
y=sol.y

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