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Fooling the CASIO ClassWiz fx-991LA X
05-15-2017, 04:14 AM (This post was last modified: 05-15-2017 12:23 PM by Gerson W. Barbosa.)
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RE: Fooling the CASIO ClassWiz fx-991LA X
(05-15-2017 01:33 AM)Paul Dale Wrote:  Very nice approximation correct to fourteen digits!


The second is π.


Notice \(ln(100\pi)=5.749900072\) is close to 23/4 (but not close enough).

I like the following better, found with help of HP-32SII solver:



[Image: 34504551052_f2a4143163_b.jpg]

Five digits reused once yielding 10 correct digits.


Edited. Trouble with LATEX here on Chrome, so I've added a picture. Also, I cannot link the CASIO WES website here, the address between quotes above.
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RE: Fooling the CASIO ClassWiz fx-991LA X - Gerson W. Barbosa - 05-15-2017 04:14 AM

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