HP Forum Archive 19

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Mathematician of the day Message #1 Posted by Bill Zimmerly on 19 Dec 2009, 3:38 a.m. One of my favourite websites that I check on a daily basis is... Mathematician of the day ...and on this particular day (December 19) I saw that Mitchell Jay Feigenbaum was born in 1944. Here is his direct Bio no matter what day "today" is... Feigenbaum I found his Bio to be significant for this forum because it mentions his work on HP calculators - with the HP-65 being mentioned in particular. Enjoy!

Re: Mathematician of the day Message #2 Posted by hpnut on 19 Dec 2009, 8:57 p.m., in response to message #1 by Bill Zimmerly Thanks! it's great to know eminent users of HP calculators. Does the professor know this forum exists? :-)

Re: Mathematician of the day Message #3 Posted by Bill Zimmerly on 20 Dec 2009, 4:57 a.m., in response to message #2 by hpnut Quote: Thanks! it's great to know eminent users of HP calculators. Does the professor know this forum exists? :-) I don't know. It was a great read, wasn't it? I've never heard of the Feigenbaum Number before, and it was neat learning about it.

Re: Mathematician of the day Message #4 Posted by hpnut on 20 Dec 2009, 9:34 a.m., in response to message #3 by Bill Zimmerly Done. I invited the professor to visit us at the Museum :-)

Re: Mathematician of the day Message #5 Posted by Mark Hardman on 20 Dec 2009, 8:05 p.m., in response to message #1 by Bill Zimmerly Checkout this past MoHPC thread that discusses programming methods that Feigenbaum might have used. http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv014.cgi?read=57727 and http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv014.cgi?read=57914 Edited: 20 Dec 2009, 8:33 p.m.

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