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  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2002-03-21 16:57:43 UTC
  • Revision ID: james.westby@ubuntu.com-20020321165743-e9mv12c1tb1plztg
Tags: upstream-2.6
Import upstream version 2.6

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man/linear/sqroot.cat
 
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sqroot            Scilab Group            Scilab Function            sqroot
 
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NAME
 
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   sqroot - W*W' hermitian factorization
 
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CALLING SEQUENCE
 
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 sqroot(X)
 
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PARAMETERS
 
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 X    : symmetric non negative definite real or complex matrix
 
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DESCRIPTION
 
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   returns W such that  X=W*W' (uses SVD).
 
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EXAMPLE
 
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 X=rand(5,2)*rand(2,5);X=X*X';
 
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 W=sqroot(X)
 
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 norm(W*W'-X,1)
 
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 //
 
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 X=rand(5,2)+%i*rand(5,2);X=X*X';
 
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 W=sqroot(X)
 
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 norm(W*W'-X,1)
 
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SEE ALSO
 
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   chol, svd  
 
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