MHB Put the 2D nonlinear system into Polar Coordinates

[Krish23]

Show that, in polar coordinates, the system is given by
r′ = r(r^2 − 4)
θ′ = 1x′1 = x1 − x2 − x1^3
x′2 = x1 + x2 − x2^3

 

[MarkFL]

Hello and welcome to MHB! :D

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