Rank: 192 based on 337 downloads (last 30 days) and 23 files submitted
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Paul Godfrey

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Files Posted by Paul View all
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01 Apr 2007 ccom Canonical transforms Perform control state space canonical transforms Author: Paul Godfrey canonical transform, ctrb, obsv, control 2 0
  • 1.0
1.0 | 1 rating
20 Mar 2007 pzplace.m Calculates the gain vectors required to place the Poles and Zeros of a state space linear system. Author: Paul Godfrey acker, place, poles, zeros 2 0
09 Nov 2006 Dett Computes the determinant of non-square matrices. Author: Paul Godfrey matrix, dett, determinant, qe, decomposition, linear algebra 36 13
  • 2.5
2.5 | 3 ratings
23 Oct 2006 Simple SVD SVD computation using QR decomposition Author: Paul Godfrey svd, singular, qr, linear algebra, values 43 9
  • 3.5
3.5 | 2 ratings
23 Oct 2006 adj.m Finds the adjoint of any rectangular matrix Author: Paul Godfrey matrix, linear algebra, adjoint, mathematics, adjugate 43 6
  • 4.11111
4.1 | 9 ratings
Comments and Ratings on Paul's Files View all
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23 Sep 2009 Padefit Rational polynomial fitting Author: Paul Godfrey Erres, Seis

Thank you very much for this nice function which works perfectly
03 Sep 2009 Simple SVD SVD computation using QR decomposition Author: Paul Godfrey togi, hendra

i have a project (Robust DWT-SVD Domain Image Watermarking:
Embedding Data in All Frequencies).
i use DWT, decompose the cover image A into 4 subbands:
LL, HL, LH, and HH.
can you tell me how to apply svd to each subband image…
the program uses matlab. thx
05 Jun 2009 Gamma Compute a very accurate Gamma function over the entire complex plane. Author: Paul Godfrey Grine, Slimane

Thanks. Very useful!
18 Jan 2009 Gamma Compute a very accurate Gamma function over the entire complex plane. Author: Paul Godfrey Deepak

Its so lovely to see this function on the first search.
Extremely handy.
Please post some references as well for the theory.
13 Jan 2009 Simple SVD SVD computation using QR decomposition Author: Paul Godfrey Lei

Could anybody tell me how to evaluate the time required by the SVD. Please kindly note the svd.m called directly by the workspace is a built-in function, which is much faster than the svd.m available on the Matlab website. So which one is more suitable to evaluate the required time?

Actually, I am trying to compare a new algorithm with the SVD in computational cost or time. I suppose the built-in SVD function might be faster than the source-code SVD function. Could anybody help me? Thanks a lot for your kindly helps in advance! My email address is huanglei8rsp@yahoo.com.cn.
Top Tags Applied by Paul
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linear algebra, mathematics, complex, matrix, fourier
Files Tagged by Paul View all
  • 1 - 5 of
  • 22
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
20 Mar 2007 pzplace.m Calculates the gain vectors required to place the Poles and Zeros of a state space linear system. Author: Paul Godfrey acker, place, poles, zeros 2 0
09 Nov 2006 Dett Computes the determinant of non-square matrices. Author: Paul Godfrey matrix, dett, determinant, qe, decomposition, linear algebra 36 13
  • 2.5
2.5 | 3 ratings
23 Oct 2006 Simple SVD SVD computation using QR decomposition Author: Paul Godfrey svd, singular, qr, linear algebra, values 43 9
  • 3.5
3.5 | 2 ratings
23 Oct 2006 adj.m Finds the adjoint of any rectangular matrix Author: Paul Godfrey matrix, linear algebra, adjoint, mathematics, adjugate 43 6
  • 4.11111
4.1 | 9 ratings
17 Oct 2006 Symmetric matrix factoring Factors an nxn matrix into a product of n+1 symmetric matrices Author: Paul Godfrey symmetric matrices, linear, linear algebra, symmetric factoring h... 23 0

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