Re: Debracketing array symbols

*To*: mathgroup at smc.vnet.net*Subject*: [mg92179] Re: Debracketing array symbols*From*: Szabolcs Horvát <szhorvat at gmail.com>*Date*: Mon, 22 Sep 2008 07:08:13 -0400 (EDT)*Organization*: University of Bergen*References*: <gb2e6u$bp0$1@smc.vnet.net> <gb7o9j$ndp$1@smc.vnet.net>

carlos at colorado.edu wrote: > > A related question A={A[1], A[2], A[3], A[4]} produces infinite > recursion in 4.2 and 5.2 (NB - I prepare all coursework with > 4.2 for compatibility with some remote students in industry) > Is the symbol A used on the RHS? Yes, it is. A[1] is not a symbol. It is a compound expression with head A. The heads of expression are evaluated too. > {A[1], A[2], A[3], A[4]} //FullForm just shows > List[A[1],A[2],A[3],A[4]] which does not tell me much. > Where is the role of A in the RHS explained in the documentation?. >