wrong limit ?
- To: mathgroup at smc.vnet.net
- Subject: [mg76734] wrong limit ?
- From: ventu <nuclearVentu at gmail.com>
- Date: Sat, 26 May 2007 04:43:44 -0400 (EDT)
Hi ! Here's my problem (mathematica 5.0,5.1,5.2): Limit[Coth[xB], B -> +Infinity] it doesn't understand. mmh. ok I try then: Limit[Coth[x B], B -> +Infinity, Assumptions -> Im[x] == 0] 1 WRONG ! In fact: Limit[Coth[x B], B -> +Infinity, Assumptions -> Im[x] == 0 && Re[x] < 0] -1 Indeed the correct result should be sign(x). And I couldn't find a way to get it right. Do I mistake something? Thank you in advance, Davide