...and ln() is the natural logarithm

Note that it doesn't have to be the natural logarithm. You can use a log to any base.
D:\>perl -MPOSIX="log10,log2" -le "$r1=log(1234)/log(2);$r2=log10(1234 +)/log10(2);$r3=log2(1234)/log2(2);print $r1; print $r2; print $r3;" 10.269126679149417887862906163471 10.269126679149417887862906163471 10.269126679149417887862906163471
Cheers,
Rob

In reply to Re^2: Power of two round up. by syphilis
in thread Power of two round up. by boo_radley

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