Lemniscate constant or Gauss constant. also known under this formula. 1/2*Pi^(3/2)/GAMMA(3/4)^2*2^(1/2); also known under the same number divided by sqrt(2)--> 1.854... see D.H. Lehmer The Lemniscate Constant : MTAC (or now MOC) vol 3. pp 550-551 (1948-49). or Abramowitz and Stegun, Handbook of Mathematical Functions, p 658 formula 18.14.7 Dover Publication, New York 1964. 2.622057554292119810464839589891119413682754951431623162816821703800790587070414250230295532961\ 4290934461357526717832180556089569013939356947011194347752358404226414971649069519368999799\ 3214607238312139081020622189742960085655453977230536954971028888832552648702132901209754083\ 3128568511729752229214296692430513968456455539432881415381331735108409226312132476667633414\ 5099886034294214792247144879639078725641895218110272525166299643333846606793336350931398085\ 2623773940914262648984803480457254147704617542125634212995586312998022405460901209149913989\ 7885645312480971101149665075060542093841723886900040274785389625483030580303946324783219558\ 3255229730371913419189835921999142295366725691068611309381349807255529130150937303326110870\ 4581424076578188653076693247694076162672163624954948006676096138812232247692559101870577574\ 3614648912879832686662030731373313562107612636379245785801781364105361306093563472025022592\ 312041202668270457723044608378953311357002940577442011806826257962983642671092116198595 # This is the electronic signature for Plouffe's Inverter # # Ceci est la signature électronique pour l'Inverseur de Plouffe # # Copyright : Simon Plouffe/Plouffe's Inverter (c) 1986. # # http://www.lacim.uqam.ca/pi #