IPB

Welcome Guest ( Log In | Register )


> math question, find the norm
moebary
post Sep 5 2007, 11:00 AM
Post #1


Eric The Sexy


Group: Moderators
Posts: 831
Joined: 23-February 06
Member No.: 30



given an orthogonal set, how do you find the norm for that set of functions

I remember how to find the norm of a single function, but don't remember if you do something different for a set.

i should know this considering i got a degree in math, but can't remember.

if you need to know, the functions are sin(n*x) and cos(n*x) where n=0,1,2,...

This post has been edited by moebary: Sep 5 2007, 11:01 AM
Go to the top of the page
 
+Quote Post
 
Start new topic
Replies
moebary
post Sep 5 2007, 02:34 PM
Post #2


Eric The Sexy


Group: Moderators
Posts: 831
Joined: 23-February 06
Member No.: 30



QUOTE (blaarg @ Sep 5 2007, 01:40 PM) *
well there are different kinds of norms that you can take...
typically you integrate the multiplication of the two functions


that's what you do to tell if the set is orthogonal.

to find the norm of a function you square it, integrate it, then take the root. though I'm not sure what to do with a set of functions.


QUOTE (blaarg @ Sep 5 2007, 01:43 PM) *
what are you doing this for?
it sounds very Fourier-esque...


Fourier series/transforms involved with numerical models

QUOTE (Spectatrix @ Sep 5 2007, 02:10 PM) *
I figured he was probably looking for the L2 (Euclidian) norm.


yep

This post has been edited by moebary: Sep 5 2007, 03:27 PM
Go to the top of the page
 
+Quote Post

Posts in this topic


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



Lo-Fi Version Time is now: 21st June 2026 - 12:38 PM
Skin made by: skeedio.com