Re: How to implement arg min f(x)?
- To: mathgroup at smc.vnet.net
- Subject: [mg24942] Re: [mg24936] How to implement arg min f(x)?
- From: BobHanlon at aol.com
- Date: Thu, 24 Aug 2000 05:08:15 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
In a message dated 8/22/2000 4:41:37 PM, may106 at psu.edu writes:
>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?
>
x /. FindMinimum[Abs[7x - 3], {x, 2, 4}][[2]]
0.428571
Bob Hanlon