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How to implement arg min f(x)?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg24936] How to implement arg min f(x)?
  • From: Mike Yukish <may106 at psu.edu>
  • Date: Tue, 22 Aug 2000 16:22:44 -0400 (EDT)
  • Organization: Penn State University, Center for Academic Computing
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

I want to implement arg min f(x), but when I use the FindMinimum
function it returns the minimum and it returns the argument for the
minimum in the form "x -> 1.234", i.e. a string.  I am using the
minimization in a manner analogous to solving Ax=b for x by finding

arg min  ||Ax-b||
       x

How do I pick off the value of x?

To further complicate things, I am using the Excel/Mathematica link
package, and I want the value of x for use in Excel.

Thoughts?





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