```Ah, also I should note that using braces for exponents in l3fp is
wrong.  It turns out to work incidentally, because these specific
braces are basically ignored, so you get (1+1/1010)^1010.

> Hello Andrew,
>
> Very clearly a bug.  Comes from a bug in the log function (well, the
> more precise internal version that is used when computing powers) in
> the range [1.00099009, 1.0009901) it seems, and probably some other
> ranges.  I'll investigate.
>
> Also, I'll likely answer at some point in the next couple of days to
> your juxtaposition email.  Sorry for the delay.
>
> Regards,
> Bruno
>