See BP851 for a version where the figure must stay within the 2D plane and cannot pass through itself while being deformed.
See BP851 for the version where the figure must stay within the 2D plane and cannot pass through itself while being deformed.
All points (small white circles) on one figure can be glued together to make the other figure vs. not so.
All points (small white circles) on one curve can be glued together to make the other curve vs. not so.
Pairs of points (small white circles) on one curve can be glued together to make the other curve vs. not so.
Aaron David Fairbanks