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Dear friends,

I have a 3-D non-linear equation. I have inearised it to get a single fixed point which turns out to be a repelling spiral (one +ve real eigenvalue, and two complex conjugates with +ve real part).....Now, the problem is whatever initial point (even if the initial point is very close to the fixed point itself, not to talk of the far of initial conditions) I take in the phase space and run 4th order runge-kutta code, the trajectory converges to the fixed point.....why should it be?..(To me it seems strange as the fixed point is repelling spiral!!!).....Please help me!!!

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# Unstable fixed point.help me U may find interesting

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