i need the matlab function SVD

2013 3 28
1 个回答
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HI friends, can anyone give me a link to download the singular value decompose (SVD) function? please people, i really need it.
thanks

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回答（1 个）

Sean de Wolski
Sean de Wolski 2013-3-28

0 个投票

If you have a regular legal installation of MATLAB; svd() should be present.
If it is not, what is the output from the following?
which -all svd
If nothing shows up, try:
restoredefaultpath; rehash toolboxcache
If that doesn't work; contact technical support.

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ibrahim
ibrahim 2013-3-28
编辑：Walter Roberson 2013-3-28
thanks for your reply, below are the answers. I want to decompose an image, which should i select from and how do i call the function? thanks
built-in (C:\Program Files\MATLAB\R2010a\toolbox\matlab\matfun\@single\svd) % single method
built-in (C:\Program Files\MATLAB\R2010a\toolbox\matlab\matfun\@double\svd) % double method
C:\Program Files\MATLAB\R2010a\toolbox\distcomp\parallel\@codistributed\svd.m %
codistributed method
C:\Program Files\MATLAB\R2010a\toolbox\robust\robust\@frd\svd.m % frd method
C:\Program Files\MATLAB\R2010a\toolbox\symbolic\symbolic\@sym\svd.m % sym method
Walter Roberson
Walter Roberson 2013-3-28
MATLAB will automatically select the correct function depending on the datatype of the input. Usually that would be the one marked as "double method".
ibrahim
ibrahim 2013-3-28
i have tried call that function using [u,s,v]=svd(a) but it has always given me error saying invalid function or method svd.
Walter Roberson
Walter Roberson 2013-3-28
What does class(a) show ?
ibrahim
ibrahim 2013-3-28
hi, thanks much, it now working.
Walter Roberson
Walter Roberson 2013-3-28
How did you solve the problem?

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ibrahim
ibrahim
2013-3-28

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