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How to solve following system of ordinary differential equations using Octave?

$$\frac{dx}{dt} = - [x(t)]^2 - x(t)y(t)$$ $$\frac{dy}{dt} = - [y(t)]^2 - x(t)y(t)$$

Update: initial conditions: $x(t=0) = x_0, \space y(t=0) = y_0$

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    What are the initial conditions? Also, since Octave is the free version of MATLAB, you may get better results including it in google searches also.2012-11-27
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    What kind of solution can Octave give you?2012-11-27
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    Here is a [related problem](http://math.stackexchange.com/questions/221534/coupled-nonlinear-ode/221587#221587).2012-11-27
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    @MhenniBenghorbal: I am counting on analytical solution.. Not sure if I can get it from Octave2012-11-30

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