## Catenary curves

This Wednesday from 4-5pm, we will look at catenary curves, like our own Gateway Arch. The equation for a catenary curve is of the form

$y = a\cosh(\dfrac{x}{a})$

But they look so much like parabolas! How are these curves like parabolas? How are they different? Come find out about all sorts of these types of curves in the lobby of Ritter Hall from 4-5pm tomorrow! Refreshments will be provided. Bring your friends!