wl_fft_s/index.html">Owl_fft_s</a> <span class="keyword">end</span></span></code></summary><div class="odoc-spec"><div class="spec value anchored" id="val-fft"><a href="#val-fft" class="anchor"></a><code><span><span class="keyword">val</span> fft : 
  <span><span class="optlabel">?axis</span>:int <span class="arrow">&#45;&gt;</span></span>
  <span><span><span>(<span class="xref-unresolved">Stdlib</span>.Complex.t, <span class="xref-unresolved">Stdlib</span>.Bigarray.complex32_elt)</span> <a href="../../Owl_