Some assistance from seasoned users.

*To*: mathgroup at smc.vnet.net*Subject*: [mg124894] Some assistance from seasoned users.*From*: "peter livingston" <peter.livingston at cox.net>*Date*: Sat, 11 Feb 2012 06:35:51 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

Folks! I have recently come to the pleasures of Mathematica from other popular but very expensive programming methods that I, as a retiree, cannot afford. My specific question is this: why am I able to get Mathematica to do the complete integral of sin(x)/x, but it refuses to do any of the other types: specifically sin^3[x]/x or sin^3[x]/x^3 over the half interval from zero to infinity. (see page 449 of G & R Table of Integrals). It seems to suggest that throwing away my Gradshtein and Ryzhik is premature in spite of the claims in the Mathematica "Mathematics and Algorithms" manual. Peter Livingston

**Follow-Ups**:**Re: Some assistance from seasoned users.***From:*Tomas Garza <tgarza10@msn.com>

**Re: Some assistance from seasoned users.***From:*Bob Hanlon <hanlonr357@gmail.com>