I am very new to Mathematica and overall not very good with programming. I want to plot the region $|(\frac{z}{f(z)}f'(z))^{1+q}-1|<1$ where $z$ is taken from the unit disk and $0<q<1$. In this example, I took the function $f$ to be $f(z)=z+\frac{1}{2}z^2$ and this is the code I used to draw the region (with the help of ChatGPT admittedly).
(* Define the function f[z] *)
f[z_] := z+(1/2)z^2
(* Compute the derivative of f[z] with respect to z *)
fDerivative[z_] := D[f[z], z]
(* Define a range of q values from 0 to 1 *)
qValues = Range[0, 1, 0.1];
(* Create an animation of plots for different q values *)
animation = Animate[
ComplexRegionPlot[
Abs[((z/f[z])^(1 + q) fDerivative[z]) - 1] < 1,
{z, 3},
PlotLabel -> Row[{"q = ", q}],
PlotRange -> All],
{q, qValues},
AnimationRunning -> False
]
I have a feeling that this code is not correct. I want the values of z to be taken from the unit disk $|z|<1$.
Is it as simple as changing the bit of code in ComplexRegionPlot to be like this?
ComplexRegionPlot[
Abs[((z/f[z])^(1 + q) fDerivative[z]) - 1] < 1 && Abs[z]<1,
{z, 3}]
Would that work in fixing my problem or do I need to add or change some other parameter to get the results I wanted? Or is it already correct and I am just confused over nothing.
((z/f[z] fDerivative[z] )^(1 + q) )
, but your code is:((z/f[z])^(1 + q) fDerivative[z])
$\endgroup$f'[z]
. They are identical (SameQ
), i.e.,f'[z] === D[f[z], z]
isTrue
$\endgroup$