Discrete Fourier transforms (scipy.fft)#
Fast Fourier Transforms (FFTs)#
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 | Compute the 1-D discrete Fourier Transform. | 
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 | Compute the 1-D inverse discrete Fourier Transform. | 
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 | Compute the 2-D discrete Fourier Transform | 
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 | Compute the 2-D inverse discrete Fourier Transform. | 
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 | Compute the N-D discrete Fourier Transform. | 
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 | Compute the N-D inverse discrete Fourier Transform. | 
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 | Compute the 1-D discrete Fourier Transform for real input. | 
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 | Computes the inverse of  | 
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 | Compute the 2-D FFT of a real array. | 
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 | Computes the inverse of  | 
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 | Compute the N-D discrete Fourier Transform for real input. | 
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 | Computes the inverse of  | 
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 | Compute the FFT of a signal that has Hermitian symmetry, i.e., a real spectrum. | 
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 | Compute the inverse FFT of a signal that has Hermitian symmetry. | 
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 | Compute the 2-D FFT of a Hermitian complex array. | 
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 | Compute the 2-D inverse FFT of a real spectrum. | 
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 | Compute the N-D FFT of Hermitian symmetric complex input, i.e., a signal with a real spectrum. | 
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 | Compute the N-D inverse discrete Fourier Transform for a real spectrum. | 
Discrete Sin and Cosine Transforms (DST and DCT)#
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 | Return the Discrete Cosine Transform of arbitrary type sequence x. | 
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 | Return the Inverse Discrete Cosine Transform of an arbitrary type sequence. | 
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 | Return multidimensional Discrete Cosine Transform along the specified axes. | 
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 | Return multidimensional Inverse Discrete Cosine Transform along the specified axes. | 
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 | Return the Discrete Sine Transform of arbitrary type sequence x. | 
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 | Return the Inverse Discrete Sine Transform of an arbitrary type sequence. | 
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 | Return multidimensional Discrete Sine Transform along the specified axes. | 
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 | Return multidimensional Inverse Discrete Sine Transform along the specified axes. | 
Fast Hankel Transforms#
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 | Compute the fast Hankel transform. | 
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 | Compute the inverse fast Hankel transform. | 
Helper functions#
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 | Shift the zero-frequency component to the center of the spectrum. | 
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 | The inverse of  | 
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 | Return the Discrete Fourier Transform sample frequencies. | 
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 | Return the Discrete Fourier Transform sample frequencies (for usage with rfft, irfft). | 
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 | Return optimal offset for a fast Hankel transform. | 
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 | Find the next fast size of input data to  | 
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 | Find the previous fast size of input data to  | 
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 | Context manager for the default number of workers used in  | 
| Returns the default number of workers within the current context | 
Backend control#
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 | Context manager to set the backend within a fixed scope. | 
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 | Context manager to skip a backend within a fixed scope. | 
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 | Sets the global fft backend | 
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 | Register a backend for permanent use. |