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http://homepages.cwi.nl/~jason/Classes/numwisk/ch10.pdf

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I just tried their Matlab code to plot the region but it returns an error:

http://homepages.cwi.nl/~jason/Classes/numwisk/ch10.pdf

Undefined function 'contourplot' for input arguments of type 'double'.

Have you tried to plot it?

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Definitely not:Beautiful image, Dustin!

Did you write your own contourplot function?

Code:

```
[X, Y] = meshgrid(-3:.01:1, -3:.01:3);
Mu = X + i*Y;
R = 1 + Mu + .5*Mu.^2 + (1/6)*Mu.^3 + (1/24)*Mu.^4;
Rhat = abs(R);
Rhat = Rhat.*(Rhat<1); %# here I truncate
imagesc([min(X(:)) max(X(:))],[min(Y(:)) max(Y(:))], Rhat)
colormap(flipud(bone))
```

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