Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
1997
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 1997

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

Search the Archive

Re: A quick question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg7871] Re: A quick question
  • From: sergio at scisun.sci.ccny.cuny.edu (Sergio Rojas)
  • Date: Thu, 17 Jul 1997 15:35:35 -0400
  • Organization: City College Of New York - Science
  • Sender: owner-wri-mathgroup at wolfram.com

    Another alternative is:

       x = x /. FindMinimum[x^2,{x,-5}][[2]]
Rojas

E-mail: sergio at scisun.sci.ccny.cuny.edu

Tony NICOLAS (Tony.Nicolas at insa-rouen.fr) wrote:
: In article <5pv1q6$ig1 at smc.vnet.net>, Chen-Ying Huang
: <huang3 at fas.harvard.edu> wrote:

: > Hi there:
: >   I am a grad student and I am using Mathematica to solve an
: > international trade model. My question is that since I need to do some
: > nonlinear optimization, so I used the command "FindMinimum". The problem
: > is that Mathematica reported it without assigning the value to the
: > variable. For example, say if I want to FindMinimum of the function
: > f=x^2, then the result I get is {0,{x->0}. But that is not enough for me
: > since I want the value 0 to be restored in x, that is I want to have 0
: > assigned to the variable x after I run the command "FindMinimum" because
: > I need to use this value of x to do more calculations. Since I need to
: > repeat this in a loop, I cannot do it manually. Is there someone who can
: > help me with this? I really appreciate any help and please give me
: > answers as soon as possible. I really need to do this, otherwise my
: > advisor will think that I am just shirking.
: >    Thank you, whoever you are!
: > Chen-Ying Huang
: > e-mail: chuang at kuznets.fas.harvard.edu

: Evrey object in Mathematica is a list. So if you want give the value of x,
: you must write:
:    
: an example
:    a=FindMinimum[x^2,{x,-5}]
:    x=a[[2,1]][[2]]

: Tony



  • Prev by Date: GrahicsArray/Text
  • Next by Date: Re: Q : Lists as sets.
  • Previous by thread: Re: A quick question
  • Next by thread: Getting image data - how?