l#Fortran_002dinterface-routines">Fortran-interface routines</a>), which automatically
reverses the order of the array dimension for you.  Here, you are
calling the C interface directly, so there is no &ldquo;translation&rdquo; layer.
</p>
<a name="index-r2c_002fc2r-multi_002ddimensional-array-format-2"></a>
<p>An important thing to keep in mind is the implication of this for
multidimensional real-to-complex transforms (see <a href="Multi_002dDimensional-DFTs-of-Real-Data.html#Multi_002dDimensional-DFTs-of-