Math Is Fun Forum

pari_alf

Member

Registered: 2013-12-01

Posts: 85

SVD of 2D function

Hi guys,

I am looking how can we define SVD of 2D function f(x+u,y+v)?

Anyone can pls help me to direct to it. thank you

zetafunc

Moderator

Registered: 2014-05-21

Posts: 2,432

Website

Re: SVD of 2D function

What does 'SVD' stand for?

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: SVD of 2D function

Singular Value decomposition and I thought it was just for matrices.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,143

Re: SVD of 2D function

Ahh.  Not just me then. 

pari_alf.  please give an easier example to show what you mean.

Bob

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

pari_alf

Member

Registered: 2013-12-01

Posts: 85

Re: SVD of 2D function

Hi Bob and hello to everyone

In my previous post, i posted the first derivative of 2D function f(x+u,y+v) by the taylor series expansion.

This time i want to apply SVD singular value decomposition on 2D function f(x+u, y+v).
But do not have idea how to do it.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,143

Re: SVD of 2D function

hi pari_alf

I'm still not following you. 

When I first read your post I didn't know what SVD was at all I looked up and learnt that it is to do with Matrices.  So I thought it wise to keep quiet and let others help if they can.

But others have the same problem.  Your example doesn't seem to have a matrix connection.

That's why I asked you to "please give an easier example to show what you mean."

You must have something that will show what came before this question.  That will help someone (maybe not me) to see where this work came from.

Bob

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob