DescriptionMandelbrot set rainbow colors.png	Color image of the mandelbrot set. The color indicates the number of iterations before the absolute value of a complex number exceeds a certain value. The complex number ${\displaystyle z_{0}}$ is taken from the pixels coordinates. Succeeding values are calculated as ${\displaystyle z:=z^{2} z_{0}}$.
Date	November 2008
Source	Own work
Author	Geek3 (talk)

This image can be completely generated by the following source code. If you have the programs "g ", "netpbm" and "optipng" installed, the following commands compile the image:

g   mandelbrot.cpp -o mandelbrot
./mandelbrot
mv mandelbrot.ppm mandelbrot1.ppm && cp mandelbrot1.ppm mandelbrot2.ppm &&
pnmflip -tb mandelbrot2.ppm > mandelbrot3.ppm && rm mandelbrot2.ppm &&
pnmcat -tb mandelbrot1.ppm mandelbrot3.ppm > mandelbrot.ppm && rm mandelbrot{1,3}.ppm
pnmtopng mandelbrot.ppm > mandelbrot.png && rm mandelbrot.ppm
optipng mandelbrot.png

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