UP Return to the pictures of curves with a flat flex.

A Curve With a Flat Flex and Moving Cusps

Here is a motion picture of a curve with a flat flex and three cusps, as two of the cusps approach each other, forming a box point in the limit. It is rotated with respect to the static original seen on the previous page.


The picture is linked to a much larger (700 KB) file containing a longer version of the same movie.