a href="Installation-and-Customization.html">Installation and Customization</a>.)
Transforms whose sizes are powers of <em>2</em> are especially fast.
</li><li>- For a <code>REDFT00</code> or <code>RODFT00</code> transform kind in a dimension of
size <em>n</em>, it is <em>n-1</em> or <em>n+1</em>, respectively, that
should be factorizable in the above form.
</li></ul>

</li><li> <code>in</code> and <code>out</code> point to the input and output arrays of the
transform, which may be the same (yielding an in-