Re: (O.T.) Happy Pi Approximation Day! 'e*XROOT(12,e^(3*4)+5.6789)' (N.T.) Message #3 Posted by Gerson W. Barbosa on 22 July 2009, 6:02 p.m., in response to message #2 by Paul Dale
Thanks!
It took me only five minutes or so to find this one on the 12C:
3.141592654
ENTER
1 e^x /
ENTER ENTER ENTER
; now press * n times until something interesting shows on the display:
* => 1.335705708 not close enough to sqrt(sqrt(pi)) > ignore
* => 1.543711618 don't recognize > ignore
* => 1.784109737 not close enough to sqrt(pi) > ignore
* and so on...
*
*
* => 3.183047554 From memory, close to 10/pi > near idendity (pi/e)^8 ~ 10/pi, but useless for my purpose
*
*
*
* => 5.678906136 > =(pi/e)^12. Since I have 12 and 56789, decide to try a pandigital approximation (only 3 and 4 missing).
Luckily e^12 = e^(3*4) does the job nicely! :)
Gerson.
