Re: [math-fun] Twenty-dollar question

Catenaries and parabolae are only distinguishable at large scales: http://en.wikipedia.org/wiki/File:Comparison_catenary_parabola.svg

----- Original Message ----- From: James Propp Sent: 03/18/13 07:03 PM To: math-fun Subject: [math-fun] Twenty-dollar question

Is the hanging chain on the back of the $20 bill mathematically correct? It looks more like a parabola than a catenary to me.

Jim Propp _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun