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fft in Smath 5346 - fft in Smath 5346 - Сообщения
Hello Davide !
Our cfft/icfft are there ... so fast.
Just can't yet augment the 2D... shit !
Jean
Fourier al_fftc1d.sm (91 КиБ) скачан 216 раз(а).
Our cfft/icfft are there ... so fast.
Just can't yet augment the 2D... shit !
Jean
Fourier al_fftc1d.sm (91 КиБ) скачан 216 раз(а).
1 пользователям понравился этот пост
Davide Carpi 18.03.2016 08:36:00
Hello Jean 
The problem seems that inside the functions stack/augment works in symbolical mode, and the input in symbolical mode is the one below, that is not managed by stack/augment (not sure if correct for symbolical calculations, bug or missing feature).
![2016-03-18 12_06_27-SMath Studio Desktop - [Fourier al_fftc1d_[ALGLIB][DEBUG].sm_].png](/ru-RU/files/Download/ZMPTB7/2016-03-18-12_06_27-SMath-Studio-Desktop---[Fourier-al_fftc1d_[ALGLIB][DEBUG].sm_].png)
You have to place an eval() inside fft2D to force a numerical result.
Fourier al_fftc1d_[ALGLIB][DEBUG].sm (101 КиБ) скачан 191 раз(а).
Fourier al_[FFTPACK].sm (52 КиБ) скачан 191 раз(а).

The problem seems that inside the functions stack/augment works in symbolical mode, and the input in symbolical mode is the one below, that is not managed by stack/augment (not sure if correct for symbolical calculations, bug or missing feature).
![2016-03-18 12_06_27-SMath Studio Desktop - [Fourier al_fftc1d_[ALGLIB][DEBUG].sm_].png](/ru-RU/files/Download/ZMPTB7/2016-03-18-12_06_27-SMath-Studio-Desktop---[Fourier-al_fftc1d_[ALGLIB][DEBUG].sm_].png)
You have to place an eval() inside fft2D to force a numerical result.
Fourier al_fftc1d_[ALGLIB][DEBUG].sm (101 КиБ) скачан 191 раз(а).
Fourier al_[FFTPACK].sm (52 КиБ) скачан 191 раз(а).
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Thanks Davide,
Your coming FFTPACK looks great/effective.
In the mean time, interested users can use
cfft ... spectrum added.
Cheers, Jean
Fourier al_fftc1d_ALGLIB.sm (88 КиБ) скачан 223 раз(а).
Your coming FFTPACK looks great/effective.
In the mean time, interested users can use
cfft ... spectrum added.
Cheers, Jean
Fourier al_fftc1d_ALGLIB.sm (88 КиБ) скачан 223 раз(а).
1 пользователям понравился этот пост
Davide Carpi 18.03.2016 14:01:00
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