Author: Jouni Uski
Date: 22:07:24 10/13/99
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On October 13, 1999 at 13:33:39, Ratko V Tomic wrote: >Thanks for the formula. > >> ELO difference = -400 * log (1/res-1), where res = result%/100% > >Is this base 10 or 2 or natural log? > >(If res=W/(W+L) then dE=400*log(W/L), and comparing your formula to the other >formula for res=75% giving dE=200 points, in this thread, that would suggest >base 10 logarithm is assumed. Is that right?) > >Also, what's the range of error? (Is error on W and L assumed to be sqrt(W) and >sqrt(L) for large enough W and L values?) Of course log is base 10 as ln is base e. There are no error range - calculation is correct :-)
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