Tough Integral

*To*: mathgroup at smc.vnet.net*Subject*: [mg20262] Tough Integral*From*: Lawrence Walker <lwalker701 at earthlink.net>*Date*: Sun, 10 Oct 1999 01:27:24 -0400*Organization*: Morgan State University: COMSARE*Sender*: owner-wri-mathgroup at wolfram.com

Mathematica is able to calculate the following integral. In[1]:= Integrate[x^3/(E^x-1),{x,0,Infinity}] Out[1]= Pi^4/15 For the life of me, I cannot solve this by hand. Does any know or has any ideas. Thanks in advance, Lawrence -- ------------------------------------------------------------ (\___/) The fear of the LORD is the beginning of (o\ /o) wisdom: a good understanding have all they /|:.V.:|\ that do his commandments: his praise \\:::::// endureth for ever. Psa 111:10 -----`"" ""`------------------------------------------------ Lawrence A. Walker Jr., M.Eng./Ph.D. Candidate Morgan State University Clarence M. Mitchell School of Engineering COMSARE (Center Of Microwave/Satellite And RF Engineering) Rm: 306-Schafer Phone: (443)885-1453 ------------------------------------------------------------