10/02/07 15:57:26
--後半--
!入力データの設定
write(*,*) 'Input data:'
open(unit=11,file='violin.dat')
do i=1,N
※ここが分かりません！※
end do
close (11)
!========================================================================
!ライブラリを利用したフーリエ変換（作業領域作成と実行）
call fftw_f77_create_plan(plan,N,FFTW_FORWARD,FFTW_ESTIMATE) !準備
call fftw_f77_one(plan,in,out) !実行
!========================================================================
!結果の変換
c(0:N-1)=out(1:N)
a(0)=c(0)
a(1:Ma)=dble( c(1:Ma)+c(N-1:N-Ma:-1) )
b(1:Mb)=dble( (c(1:Mb)-c(N-1:N-Mb:-1))*(0.0d0,1.0d0) )
!========================================================================
!結果の出力
write(*,*) 'Output data after forward FFT:'
open(unit=22,file='ab-.csv')
open(unit=21,file='c-.csv')
do i=1,N
write(21,'(i6,'','',1pe16.8,'','',1pe16.8)') i,out(i)
end do
write(22,'(1pe16.8,'','',1pe16.8,'','',1pe16.8)') 0.0,a(0),0.0
write(22,'(1pe16.8,'','',1pe16.8,'','',1pe16.8)') (i*df,a(i),b(i),i=1,Mb)
if (Ma/=Mb) write(22,'(1pe16.8,'','',1pe16.8,'','',1pe16.8)') Ma*df,a(Ma),0.0
close (21)
close (22)