Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
1999
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 1999

[Date Index] [Thread Index] [Author Index]

Search the Archive

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


  • Prev by Date: Re: Excel
  • Next by Date: does it run under Windows NT server edition?
  • Previous by thread: Re: Can't get the 3rd Bessel zero!
  • Next by thread: Re: Limits of multi-var. functions