Heart and star shape vase generator

thingiverse

The formula for the heart is hidden in plain sight on Google, specifically at http://www.mathematische-basteleien.de/heart.htm. It was cleverly created by Georg-Johann (Wikipedia) who brought this mathematical marvel to life. To see other shapes come alive, simply swap out the functions y() and x(). The star formula can be found at http://www.mi.sanu.ac.rs/vismath/luccanew/index.html - just plug in a new set of coordinates and watch it take shape.