GNU Octave  4.4.1
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
cffti.f
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1  subroutine cffti (n,wsave)
2  dimension wsave(*)
3  if (n .eq. 1) return
4  iw1 = n+n+1
5  iw2 = iw1+n+n
6  call cffti1 (n,wsave(iw1),wsave(iw2))
7  return
8  end
cffti1
subroutine cffti1(n, wa, ifac)
Definition: cffti1.f:2
cffti
subroutine cffti(n, wsave)
Definition: cffti.f:2
dimension
OCTAVE_EXPORT octave_value_list etc The functions then dimension(columns)