Limits at Infinity
- To: mathgroup at smc.vnet.net
- Subject: [mg55751] Limits at Infinity
- From: AES <siegman at stanford.edu>
- Date: Tue, 5 Apr 2005 03:21:44 -0400 (EDT)
- Organization: Stanford University
- Sender: owner-wri-mathgroup at wolfram.com
The expression
Limit[ Exp[-2 a x] Cos[2 q x],
x -> Infinity,
Direction -> 1,
Assumptions -> {
Element[q, Integers],
Element[a, Reals],
Re[a] > 0}]
gives 0 as expected; but the expression
Limit[ Exp[-2 a x] Cos[2 q x + b],
x -> Infinity,
Direction -> 1,
Assumptions -> {
Element[q, Integers],
Element[a, Reals],
Element[b, Reals],
Re[a] > 0}]
returns unevaluated ???