prov:value
| - i,u3r,u3i,u4r,t2r,t2i,t3r,t3i,t4r,t4i; w2i=2.0*wr*wi;double pi-- M-- PI; w3r=w2r*wr-w2i*wi;unsigned lfft; w3i=w2r*wi+w2i*wr; }/* see if fft length, n, is a power of two */ kmin=ipar*m; kmin >>= i;m = (unsigned) ceil(log((double) n)/0.693147181); if(mmax <= 2) km
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