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<h2 class="chapter">16 Matrix Manipulation</h2>
<p>There are a number of functions available for checking to see if the
elements of a matrix meet some condition, and for rearranging the
elements of a matrix. For example, Octave can easily tell you if all
the elements of a matrix are finite, or are less than some specified
value. Octave can also rotate the elements, extract the upper- or
lower-triangular parts, or sort the columns of a matrix.
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