Re: cos cos cos

"Anon" <anon@xxxxxxxxxxxxxx> wrote in message
news:m7bch4tlk8ku5r23p1unru1gt8eo3rsl59@xxxxxxxxxx
On Sat, 8 Nov 2008 17:50:10 -0500, "Old Guy" <No@xxxxxxxxxxxx> wrote:

[snip]
If you're running Windows (XP in my case), open the calculator or type
calc
at a command prompt.
In view, select scientific and radians.
Now press cos about 190 times until the number stops changing. That is the
number I posted.

Other calculators give me the same number:
http://www.google.com/search?q=cos(0.739085133)

Old Guy


In case you haven't seen this, check out
<http://mathworld.wolfram.com/DottieNumber.html>

I thought you might like the bit about "... a French professor who
noticed that whenever she typed a number into her calculator and hit
the cosine button over and over, the result always converged to this
value."

Thanks. I did find that it was called the Dottie number, but not why.


.

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