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%I #67 May 14 2024 14:05:16
%S 3,4,7,7
%N Tau-electron mass ratio.
%H NIST, <a href="https://physics.nist.gov/cgi-bin/cuu/Value?mtausme">CODATA Value: tau-electron mass ratio</a>.
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Koide_formula">Koide formula</a>.
%F m(tau)/m(e) = 3477.
%K cons,nonn
%O 4,1
%A _Benoit Cloitre_, Apr 10 2003