Re: Bug: symbol recreates itself suddenly
- To: mathgroup at smc.vnet.net
- Subject: [mg86882] Re: Bug: symbol recreates itself suddenly
- From: Bhuvanesh <lalu_bhatt at yahoo.com>
- Date: Tue, 25 Mar 2008 01:15:26 -0500 (EST)
There are some things that are not forbidden by the manual, but still, doing them might be a bad idea. For example, making definitions such as the following isn't a good idea: Sign[x]^=1; Instead one should use the assumptions mechanism: $Assumptions = Re[x] > 0 && Im[x] == 0; I agree that the documentation could be improved for such cases. Bhuvanesh, Wolfram Research