Re: How to code Conjugate Gradient Method
- To: mathgroup at smc.vnet.net
- Subject: [mg49835] Re: How to code Conjugate Gradient Method
- From: koopman at sfu.ca (Ray Koopman)
- Date: Tue, 3 Aug 2004 01:11:07 -0400 (EDT)
- References: <firstname.lastname@example.org>
- Sender: owner-wri-mathgroup at wolfram.com
jianchaoyao at hotmail.com (Justin) wrote in message
news:<ceaqi4$ant$1 at smc.vnet.net>...
> I need to write the Conjugate Gradient Method with Mathematica. I
> wanna use this method to find the minimum of a function. I tried the
> FindMinum already but it seems like this function can't work well. It
> always says:
> FindMinimum::nnum: The function value ....is not a number at ....
> The variables I used are all matrices. Does FindMinimum not work for
> Any guys has such an experience? If FindMinimum can't work, how to
> write the Conjugate Gradient Method?
Have a look at "An Introduction to the Conjugate Gradient Method
Without the Agonizing Pain", by Jonathan Richard Shewchuk
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