Re: Bug: symbol recreates itself suddenly

*To*: mathgroup at smc.vnet.net*Subject*: [mg86827] Re: Bug: symbol recreates itself suddenly*From*: Szabolcs Horvát <szhorvat at gmail.com>*Date*: Sat, 22 Mar 2008 00:54:20 -0500 (EST)*Organization*: University of Bergen*References*: <9457525.1205860522819.JavaMail.root@m08> <frqpu5$59m$1@smc.vnet.net> <frvmbc$i50$1@smc.vnet.net>

Severin Posta wrote: > This is definitely NOT the correct answer. The correct answer is (should be) > > "Symbol E not found." > > By all means this is really a bug. > > It has far-reaching consequences. Yes, for example doing this will break your Mathematica. > Using symbol E afterwards can lead to > mistakes because Mathematica thinks (suddenly!) this is again Euler > constant, not general symbol. > Did you expect that breaking hundreds of functions by removing E would not lead to mistakes? > > > Please don't ask why am I doing this. This is not forbidden according to > manual - and it worked in 4.0, 5.0, 5.2 versions. It should work in 6.0 > either. (Or it should be documented.) No, it does not work in v5.2 either. Mathematica loads symbols on demand (see DeclarePackage), and you will find a command in any version that triggers loading a function that uses E.