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MathGroup Archive 2001

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Re : Simple indefinite integral disagrees with table

  • To: mathgroup at smc.vnet.net
  • Subject: [mg28683] Re : [mg28647] Simple indefinite integral disagrees with table
  • From: John Leary <leary at superbird.co.jp>
  • Date: Tue, 8 May 2001 02:51:19 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Simple fix :  replace the curved brackets with square brackets in the
cosine function !!

Then Mathematica agrees with the book 


John Leary


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The Mathematica solution to the indefinite integral below doesn't agree with
that found in my CRC tables.

Integrate[xx Cos (aa xx), xx]
= (1/3) aa Cos xx^3

The CRC table gives: (1/aa^2) Cos (aa xx) + (xx/aa) Sin (aa xx)

The Mathematica solution doesn't look right.  Thanks for any help.

Mitch Berkson

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