2013/7/5 David Kastrup <d...@gnu.org>

> I have my doubts.  The exponential evaluates to
> 0.13 * Staffsize ** (ln(0.13)/ln(20))


Sorry for that, i'm trying to copy formulas from my excel file and doing
mistakes (plus my wife's complaining...)
after few testings, it seems that 0.14 is a better aprox. figure so here we
go :

kern =x-length*1,4*EXP(-(LN(0,14)/LN(20)*LN(Staff-Size)))

(this time I copy-paste it, so should be the goud one).

Pierre
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