       Re: Simple indefinite integral disagrees with table

• To: mathgroup at smc.vnet.net
• Subject: [mg28668] Re: Simple indefinite integral disagrees with table
• From: "Planet Internet Nieuws" <A.BinTalal at its.tudelft.nl>
• Date: Sat, 5 May 2001 04:00:52 -0400 (EDT)
• References: <9ctb6k\$m4h@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```try the following :

(1/3) aa Cos xx^3==(1/aa^2) Cos (aa xx) + (xx/aa) Sin (aa xx)//Equal

the answer will be True, Mathematica just choose a solution with less terms

"Mitch Berkson" <berkson at home.com> wrote in message
news:9ctb6k\$m4h at smc.vnet.net...
> 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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