Re: Meaning of @ ... not @@
- To: mathgroup at smc.vnet.net
- Subject: [mg32161] Re: [mg32152] Meaning of @ ... not @@
- From: BobHanlon at aol.com
- Date: Sun, 30 Dec 2001 02:54:26 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
In a message dated 12/29/01 6:59:12 PM, dot at dot.dot writes: >I'm sure I've seen this before, but cannot find the answer on the archive >because I can't think of a sensible way of limiting the search! > >What, please, is the meaning of @ as in >Conjugate @ Reverse @ Drop[list, -1] > >I seem to remember reading that this was "undocumented", and I cannot find >it in the help. The above line appears in mg1432 in the archive. This notation is included in section A.2.7; however, the easiest approach is just to use it and see what it does. f @ x f[x] Consequently, Conjugate@Reverse@Drop[lst,-1] == Conjugate[Reverse[Drop[lst,-1]]] == (Drop[lst,-1] // Reverse // Conjugate) True Bob Hanlon Chantilly, VA USA