MATLAB Function Reference |
Syntax
Description
p = etree(A)
returns an elimination tree for the square symmetric matrix whose upper triangle is that of A
. p(j)
is the parent of column j
in the tree, or 0
if j
is a root.
p = etree(A,'col')
returns the elimination tree of A'*A
.
p = etree(A,'sym')
is the same as p = etree(A)
.
[p,q] = etree(...)
also returns a postorder permutation q
of the tree.
See Also
treelayout
, treeplot
, etreeplot
etime | etreeplot |
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