English: A streamline in a Chua system

x’ = a ( y - x – f(x) )

y’ = x – y + z

z’= - b y

where f(x) = c x + 0,5 (d-c) ( |x+1| -|x-1| ) and a = 15,3946 to 15,9 , b = 28, c = -0.714, d = -1.143

It starts at (1E-6, 0, 0) and its duration is 600000, but its beginning (the first 30000) is not shown.

Each image is for a different value of a.

The first bifurcation, when the periodic streamline becomes aperiodic and fills a ribbon, is between a= 15.396 and a=15.397 .