Figure Eight Curve - MacTutor History of Mathematics

What is a mathematician doing…in a chemistry class?

Figure Eight Curve - MacTutor History of Mathematics

Watt's Curve - MacTutor History of Mathematics

Leonard Euler's Solution to the Konigsberg Bridge Problem

Lemniscate -- from Wolfram MathWorld

Logarithmic Spiral

Ovals and Egg Curves

Trifolium -- from Wolfram MathWorld

Lemniscate -- from Wolfram MathWorld

External Influences on U.S. Undergraduate Mathematics Curricula: 1950-2000