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plotting - Bifurcation diagram for iterative map



I have a mapping function (cubic logistic map) f(x)=rx(1-x^2) and I need to make multiple bifurcation diagrams, showing stable equilibria and periodic orbits for 400 equally spaced r values between 0 and 3. Once for x_0=0.7 and another diagram for x_0=-0.7 Any help would be greatly appreciated!




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