
Interpretation:
Locate the fixed point and calculate the index.
Concept Introduction:
An index of close curve is an integer that measures the windings of the
To find the index of the curve draw a close contour C on the phase portrait. Then on each point “x” on the contour C, vector field
The index of closed curve C with respect to vector field is given as
Here,

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Chapter 6 Solutions
Nonlinear Dynamics and Chaos
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