Here are tons more 'person curves': http://www.wolframalpha.com/input/?i=person+curve http://www.wolframalpha.com/input/?i=person+curve They can be created in

Here are tons more 'person curves': http://www.wolframalpha.com/input/?i=person+curve http://www.wolframalpha.com/input/?i=person+curve They can be created in Mathematica: http://mathematica.stackexchange.com/questions/17704/how-to-create-new-person-curve http://mathematica.stackexchange.com/questions/17704/how-to-...