Re: Pattern of a List of Pairs
- To: mathgroup at smc.vnet.net
- Subject: [mg20892] Re: Pattern of a List of Pairs
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Sat, 20 Nov 1999 01:07:06 -0500 (EST)
- Organization: Universitaet Leipzig
- References: <812ajv$1hc@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
try
PairArg[l : {{_, _} ..}] := Transpose[l]
and
PairArg[{{1, 2}, {3, 4}, {5, 6}, {7, 8}}]
{{1, 3, 5, 7}, {2, 4, 6, 8}}
works, while
PairArg[{{1, 2, 10}, {3, 4}, {5, 6}, {7, 8}}]
PairArg[{{1, 2, 10}, {3, 4}, {5, 6}, {7, 8}}]
does not match.
Hope that helps
Jens
Hans Steffani wrote:
>
> I need a function wich gets a list of pairs. How do I build
> the head of this function.
>
> h.f.s.
> --
> Hans Friedrich Steffani
> Institut fuer Elektrische Maschinen und Antriebe, TU Chemnitz
> mailto:hans.steffani at e-technik.tu-chemnitz.de
> http://www.tu-chemnitz.de/~hfst/