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MathGroup Archive 1999

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Re: Re: equaltity of lists

  • To: mathgroup at
  • Subject: [mg19194] Re: [mg19092] Re: [mg19036] equaltity of lists
  • From: "Allan Hayes" <hay at>
  • Date: Tue, 10 Aug 1999 02:52:50 -0400
  • References: <> <7ofa82$pnq$>
  • Sender: owner-wri-mathgroup at

Kevin J. McCann <kevinmccann at> wrote in message
news:7ofa82$pnq$5 at
> Maarten
> Agree with you, but then why do you get
> Signature[{a,b,c,d}]
> True
> Signature[{a,b,d,c}]
> False
> By the same logic this should not return an answer.
> Kevin

I get

Signature[{a, b, c, d}]


Signature[{a, b, d, c}]



"Signature[list] gives the signature of the permutation needed to place the
elements of list in canonical order."

So it must work with current values.

Allan Hayes
Mathematica Training and Consulting
Leicester UK
hay at
Voice: +44 (0)116 271 4198
Fax: +44 (0)870 164 0565

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