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sqroot(2)                      Scilab Function                      sqroot(2)
NAME
  sqroot - W*W' hermitian factorization

CALLING SEQUENCE
  sqroot(X)

PARAMETERS

  X    : symmetric non negative definite real or complex matrix

DESCRIPTION
  W=sqroot(X) returns W such that  X=W*W' (uses SVD).

EXAMPLE
  X=rand(5,2)*rand(2,5);X=X*X';
  W=sqroot(X)
  norm(W*W'-X,1)
  //
  X=rand(5,2)+%i*rand(5,2);X=X*X';
  W=sqroot(X)
  norm(W*W'-X,1)

SEE ALSO
  chol, svd