, int n2,
                           fftw_complex *in, fftw_complex *out,
                           int sign, unsigned flags);
</pre></div>
<a name="index-fftw_005fplan_005fdft_005f2d"></a>
<a name="index-fftw_005fplan_005fdft_005f3d"></a>

<p>These routines create plans for <code>n0</code> by <code>n1</code> two-dimensional
(2d) transforms and <code>n0</code> by <code>n1</code> by <code>n2</code> 3d transforms,
respectively.  All of these transforms operate on contiguous arrays in
the C-standard <em>row-m