Hi I have two equations here, and I wonder that how do you plot them as a phase plane. du/dt = u + 3*w + a*u^3 + a*u*w^2 and dw/dt = -u - w + a*u^3 + a*u*w^2 with singular point at (0,0).
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This is a math problem from Phase trajectories for differential equations.
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Walter Roberson
2016-10-24
Copying the equations from the title:
du/dt = u + 3*w + a*u^3 + a*u*w^2
dw/dt = -u - w + a*u^3 + a*u*w^2
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