Limits of multi-var. functions
- To: mathgroup at smc.vnet.net
- Subject: [mg19795] Limits of multi-var. functions
- From: Phil Mendelsohn <mend0070 at tc.umn.edu>
- Date: Fri, 17 Sep 1999 01:36:48 -0400
- Organization: University of Minnesota, Twin Cities Campus
- Sender: owner-wri-mathgroup at wolfram.com
I suspect this is an easy question, but I'm not finding it in Help or a
couple of other Mathematica books I have around.
If I want to find the limit of a function of several variables, how do I
do it? In the case of a polynomial function, I tried
Limit[x^2 y^2 - 2x y^5 + 3y, {x->2, y->3}]
for example, but this gave me two results; one case if x approaches 2
(leaving y unevaluated) and the other case if y approaches 3 (leaving x
unevaluated.) I'd like to evaluate for both simultaneously.
Did I miss something -- I do know that convergence of the limit is
proportionally more complex in several vars, but expected that Mathematica would
do it. (Running Mathematica v3.0.1, Linux)
Thanks -- Phil Mendelsohn