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real_fft
This routine performs a forward or backward Fast Fourier Transformation on its argument
data
.
Location in HEALPix directory tree:
src/f90/mod/healpix_fft.F90
FORMAT
call
real_fft
(
data
,
backward
)
ARGUMENTS
name & dimensionality
kind
in/out
description
data
(:)
XXX
INOUT
array containing the input and output data. Can be of type real(sp) or real(dp)
backward
LGT
IN
Optional argument. If present and true, perform backward transformation, else forward
EXAMPLE:
use healpix_fft
call real_fft (data, backward=.true.)
Performs a backward FFT on data.
RELATED ROUTINES
This section lists the routines related to
real_fft
complex_fft
routine for FFT of complex data
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Version 3.82, 2022-07-28