French Curve -- from Wolfram MathWorld

French curves are plastic (or wooden) templates having an edge composed of several different curves. French curves are used in drafting (or were before computer-aided design) to draw smooth curves of almost any desired curvature in mechanical drawings. Several typical French curves are illustrated above. While an undergraduate at MIT, Feynman (1997, p. 23) used a French curve to illustrate the fallacy of learning without understanding. When he pointed out to his colleagues in a mechanical

Algebraic Curve -- from Wolfram MathWorld

2010—Wolfram

Rotating Polygon Illusion - Wolfram Demonstrations Project

Turning Conics into Beans: Introducing the Haricoids

National Museum of American History

National Museum of American History

anna – Page 2 – Picture this maths

Geometric distribution, Definition, Formula, Examples, Illustration, & Applications

How to Use French Curves - Synonym