Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » sci.math.* » sci.math.num-analysis.independent

Topic: theory vs. practice
Replies: 1   Last Post: May 6, 2014 7:30 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
rdelaney2001@gmail.com

Posts: 2
Registered: 5/6/14
theory vs. practice
Posted: May 5, 2014 11:52 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Occasionally, I attend seminars re applied math,
typically discussing filters, or image processing,
often involving high dimensional spaces.

The focus is usually the efficiency of the algorithms,
or their accuracy, e.g. voice recognition. Of course
they also try to prove theoretical correctness.

And there's the problem, in my view. They throw
around gradients and conjugate gradients and
Laplacians cavalierly. Which is perfectly valid
theoretically, but numerically, doesn't this raise
concerns? Isn't there a vast literature on the
numerical difficulties in implementation?
Especially for derivatives. But they say "no sweat,
it's one line in MATLAB!" ??

Is my skepticism justified, or am I beating a
dead horse? Granted that I'm not a real expert
in the fine points -

--
Rich




Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.