"Tor Olav Kristensen" <tor### [at] TOBEREMOVEDgmailcom> wrote:
>> Here's an image where the domain colors for the function above are shown on a> plane. Here the lightness value for the colors are ramped up in intervals both> for the phase angle and the natural logarithm of the magnitude.
This image reminds me of turbofan jet engine fan blades.