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MathGroup Archive 2002

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Re: Apply and Heads option

  • To: mathgroup at smc.vnet.net
  • Subject: [mg35227] Re: Apply and Heads option
  • From: "Allan Hayes" <hay at haystack.demon.co.uk>
  • Date: Wed, 3 Jul 2002 05:13:28 -0400 (EDT)
  • References: <afrh1s$lu1$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Ted,

    Apply[f, h[][], {1}, Heads->False]

        h[][]

    Apply[f, h[][], {1}, Heads->True]

        f[][]

--
Allan

---------------------
Allan Hayes
Mathematica Training and Consulting
Leicester UK
www.haystack.demon.co.uk
hay at haystack.demon.co.uk
Voice: +44 (0)116 271 4198
Fax: +44 (0)870 164 0565


"Ersek, Ted R" <ErsekTR at navair.navy.mil> wrote in message
news:afrh1s$lu1$1 at smc.vnet.net...
> Hello mathgroup,
> ---------
>
> Apply has the Heads option.
> Can somebody give an example where
> Apply[f, expr, Heads->True]   gives a different result than
> Apply[f, expr, Heads->False].
>
> OR where
>
> Apply[f, expr, levelspec, Heads->True]   gives a different result than
> Apply[f, expr, levelspec, Heads->False].
>
> ----------
> Thanks,
>    Ted Ersek
>
>




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