> Somebody needs to open a ticket.
http://trac.sagemath.org/sage_trac/ticket/12163
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I think problems caused by the log(10,2) ~ 3.32192 assumption occur in
several places throughout Sage, and it's the source of at least one
bug report (http://trac.sagemath.org/sage_trac/ticket/10164). The
following all look suspicious to me:
misc/functional.py:prec = int((digits+1) *
Via "n??" I looked at the code. There is a line
prec = int((digits+1) * 3.32192) + 1
where the 3.32… is an approximation to log_2(10). I highly suspect that's
the source of it. Make the trailing 2 a 3 and it should give you more than
the requested number of digits.
sage: n(log(10,2), prec=100)
3
