Re: [math-fun] a numerical approximation close to 7 digit pi

Hello mr Asimov, 6.57 comes from Pi-355/113 = 0.266764189e-6 and log(0.266764189)/log(10) = 6.57 in absolute value,  so 355/113 is 6.57 has 6.57 exact decimals compared to Pi.  best regards,  simon Le 2018-02-17 à 05:13, Dan Asimov a écrit :

----- 355/113 is 6.57 decimal digits -----

Please explain how the / is .57 digits.

(More seriously: Where does the 6.57 come from?)

—Dan

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