Spectre - Gespenst 2

Cyanotype, toned with nettel tea

 

Source for the math part: cs.uwaterloo.ca/~csk/spectre/

 

cs.uwaterloo.ca/~csk/spectre/app.html - With this app you can create the "spectre"-Monotypes.

 

More information is here: A chiral aperiodic monotile cs.uwaterloo.ca/~csk/spectre/

 

Done