On Sun, Dec 22, 2013 at 10:50 AM, Roger Hui <rogerhui.can...@gmail.com> wrote:
> I expect exp can be improved.  The details are left as an exercise for the
> reader. :-)

And, perhaps, the concept of what "improved" means can be an exercise
for the reader? Here, I'll optimize for useless accuracy (or at least
accuracy which I have no immediate use for) at the expense of speed
and space:

  1163j1160":(%!i.512x)&p. 1
 
2.71828182845904523536028747135266249775724709369995957496696762772407663035354759457138217852516642742746639193200305992181741359662904357290033429526059563073813232862794349076323382988075319525101901157383418793070215408914993488416750924476146066808226480016847741185374234544243710753907774499206955170276183860626133138458300075204493382656029760673711320070932870912744374704723069697720931014169283681902551510865746377211125238978442505695369677078544996996794686445490598793163688923009879312773617821542499922957635148220826989519366803318252886939849646510582093923982948879332036250944311730123819706841614039701983767932068328237646480429531180232878250981945581530175671736133206981125099618188159304169035159888851934580727386673858942287922849989208680582574927961048419844436346324496848756023362482704197862320900216099023530436994184914631409343173814364054625315209618369088870701676839642437814059271456354906130310720851038375051011574770417189861068739696552126715468895703
 50354021234078498193343210...

I've left three extra characters to the left of the fractional part:
one for the decimal point, one for the 2 and one for the absence of a
negative sign.

Thanks,

-- 
Raul
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