Re: clearing a variable with a dummy subscript

*To*: mathgroup at smc.vnet.net*Subject*: [mg126552] Re: clearing a variable with a dummy subscript*From*: "djmpark" <djmpark at comcast.net>*Date*: Sat, 19 May 2012 05:41:46 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <16620439.4113.1337334120733.JavaMail.root@m06>

Use Unset. Subscript[u, k_] =. David Park djmpark at comcast.net http://home.comcast.net/~djmpark/index.html From: Andre Hautot [mailto:ahautot at ulg.ac.be] Hi ! Here is something very simple I don't understand : f[x_] := x; f[2] (*A function*) 2 Clear[f]; f[2] (*The same perfectly cleared as expected*) f[2] Subscript[u, k_] := k; Subscript[u, 2] (*u with subscript k_ entered via the palette*) 2 Clear[u]; Subscript[u, 2] (*I found no way to clear u; a suggestion ?) 2 Thanks in advance, ahautot