

A268683


Decimal expansion of (sqrt(2)  1)/2.


4



2, 0, 7, 1, 0, 6, 7, 8, 1, 1, 8, 6, 5, 4, 7, 5, 2, 4, 4, 0, 0, 8, 4, 4, 3, 6, 2, 1, 0, 4, 8, 4, 9, 0, 3, 9, 2, 8, 4, 8, 3, 5, 9, 3, 7, 6, 8, 8, 4, 7, 4, 0, 3, 6, 5, 8, 8, 3, 3, 9, 8, 6, 8, 9, 9, 5, 3, 6, 6, 2, 3, 9, 2, 3, 1, 0, 5, 3, 5, 1, 9, 4, 2, 5, 1, 9, 3
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OFFSET

0,1


COMMENTS

This is the maximum increase in massenergy a particle can carry away from a neutral rotating (Kerr) black hole via the Penrose process.


REFERENCES

Subrahmanyan Chandrasekhar, The Mathematical Theory of Black Holes, Oxford (1983), pp. 368369.


LINKS



EXAMPLE

0.20710678118654752440084436210484903928483593768847403658833986899536623...


MATHEMATICA



PROG

(PARI) (sqrt(2)1)/2


CROSSREFS



KEYWORD



AUTHOR



EXTENSIONS



STATUS

approved



