I enjoy painting color wheels, and I’m delighted to have finished my first one inspired by something I saw here on Mastodon, a recent post by @arnoudbuzing showing a #mathematica plot for the function
\[ \frac{z^2+1}{z^2-1} \]
This #complex function has two zeros at i and -i, shown in black, and two poles (singularities) at 1 and -1, shown in white. The origin is in the center.

This original painting is available in my Etsy shop, gwenbeads.
#mathart #colorwheel #watercolor #singularity