Analog Devices VISUALDSP++ 3.5 Manual page 489

For odd , the following equation applies:
n
+
 2 n

+
N
[ ] =
w n

−
2 N

+
 N
where n = {0, 1, 2, ..., N-1}
Domain
a > 0; N > 0
VisualDSP++ 3.5 C/C++ Compiler and Library Manual
for ADSP-219x DSPs
2
<
n N 2
1
2 n
>
n N 2
1
DSP Run-Time Library
4-73