ed to a specific size:
      </p>

      <pre class="src src-lisp"><span class="prompt">SCRATCH&gt;</span> (get-fft-plan 1024)
#&lt;FFT-PLAN :SIZE 1024 :FLAGS 0&gt;
<span class="prompt">SCRATCH&gt;</span> (get-fft-plan 4096)
#&lt;FFT-PLAN :SIZE 4096 :FLAGS 64&gt;
<span class="prompt">SCRATCH&gt;</span> (get-fft-plan 2048)
NIL
<span class="prompt">SCRATCH&gt;</span> (new-fft-plan 2048 +fft-plan-optimal+)
#&lt;FFT-PLAN :SIZE 2048 :FLAGS 32&gt;
<span class="prompt">SCRATCH&gt;</span> (new-fft-plan 2048)
#&lt;F