The Number "e" Below is the value of 'e' to about 100,000 places, computed on the NCSA Cray Y-MP using the Brent multiple precision routines (published as Algorithm 524 in the March 1978 issue of Transactions on Mathematical Software). The method used was to compute first the alternating series for 1/e, then to invert this result. The time to compute 1/e was about 594 seconds, and the time to invert was about 97 seconds. No special optimization was attempted on the code, other than the default vectorization that the cft77 compiler attempts to do. 2.718281828459045235360287471352662497 7572470936999595749669676277240766303535 4759457138217852516642742746639193200305 9921817413596629043572900334295260595630 7381323286279434907632338298807531952510 1901157383418793070215408914993488416750 9244761460668082264800168477411853742345 4424371075390777449920695517027618386062 6133138458300075204493382656029760673711 3200709328709127443747047230696977209310 1416928368190255151086574637721112523897 8442505695369677078544996996794686445490 5987931636889230098793127736178215424999 2295763514822082698951936680331825288693 9849646510582093923982948879332036250944 3117301238197068416140397019837679320683 2823764648042953118023287825098194558153 0175671736133206981125099618188159304169 0351598888519345807273866738589422879228 4998920868058257492796104841984443634632 4496848756023362482704197862320900216099 0235304369941849146314093431738143640546 2531520961836908887070167683964243781405 9271456354906130310720851038375051011574 7704171898610687396965521267154688957035 0354021234078498193343210681701210056278 8023519303322474501585390473041995777709 3503660416997329725088687696640355570716 2268447162560798826517871341951246652010 3059212366771943252786753985589448969709 6409754591856956380236370162112047742722 8364896134225164450781824423529486363721 4174023889344124796357437026375529444833 7998016125492278509257782562092622648326 2779333865664816277251640191059004916449 9828931505660472580277863186415519565324 4258698294695930801915298721172556347546 3964479101459040905862984967912874068705 0489585867174798546677575732056812884592 0541334053922000113786300945560688166740 0169842055804033637953764520304024322566 1352783695117788386387443966253224985065 4995886234281899707733276171783928034946 5014345588970719425863987727547109629537 4152111513683506275260232648472870392076 4310059584116612054529703023647254929666 9381151373227536450988890313602057248176 5851180630364428123149655070475102544650 1172721155519486685080036853228183152196 0037356252794495158284188294787610852639 8139559900673764829224437528718462457803 6192981971399147564488262603903381441823 2625150974827987779964373089970388867782 2713836057729788241256119071766394650706 3304527954661855096666185664709711344474 0160704626215680717481877844371436988218 5596709591025968620023537185887485696522 0005031173439207321139080329363447972735 5955277349071783793421637012050054513263