Tessero\Ext\Fft\Fft

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fft static

fft(mixed $a, ?int $n = null, int $axis = -1, string $norm = 'backward'): Tessero\Ext\NDArray

ifft static

ifft(mixed $a, ?int $n = null, int $axis = -1, string $norm = 'backward'): Tessero\Ext\NDArray

rfft static

rfft(mixed $a, ?int $n = null, int $axis = -1, string $norm = 'backward'): Tessero\Ext\NDArray

irfft static

irfft(mixed $a, ?int $n = null, int $axis = -1, string $norm = 'backward'): Tessero\Ext\NDArray

fft2 static

fft2(mixed $a, string $norm = 'backward'): Tessero\Ext\NDArray

ifft2 static

ifft2(mixed $a, string $norm = 'backward'): Tessero\Ext\NDArray

fftn static

fftn(mixed $a, ?array $s = null, ?array $axes = null, string $norm = 'backward'): Tessero\Ext\NDArray

N-D FFT over the given axes (every axis by default).

ifftn static

ifftn(mixed $a, ?array $s = null, ?array $axes = null, string $norm = 'backward'): Tessero\Ext\NDArray

rfftn static

rfftn(mixed $a, ?array $s = null, ?array $axes = null, string $norm = 'backward'): Tessero\Ext\NDArray

rfft over the last of the axes, then a complex fft over the rest (numpy.fft.rfftn).

rfft2 static

rfft2(mixed $a, ?array $s = null, ?array $axes = null, string $norm = 'backward'): Tessero\Ext\NDArray

irfftn static

irfftn(mixed $a, ?array $s = null, ?array $axes = null, string $norm = 'backward'): Tessero\Ext\NDArray

Inverse of rfftn: complex ifft over all but the last axis, then irfft on the last (numpy.fft.irfftn).

irfft2 static

irfft2(mixed $a, ?array $s = null, ?array $axes = null, string $norm = 'backward'): Tessero\Ext\NDArray

hfft static

hfft(mixed $a, ?int $n = null, int $axis = -1, string $norm = 'backward'): Tessero\Ext\NDArray

FFT of a Hermitian-symmetric spectrum, giving a real signal (numpy.fft.hfft).

ihfft static

ihfft(mixed $a, ?int $n = null, int $axis = -1, string $norm = 'backward'): Tessero\Ext\NDArray

Inverse of hfft: the Hermitian half-spectrum of a real signal (numpy.fft.ihfft).

hfftn static

hfftn(mixed $a, ?array $s = null, ?array $axes = null, string $norm = 'backward'): Tessero\Ext\NDArray

N-D FFT of a Hermitian-symmetric spectrum, giving a real signal (scipy.fft.hfftn).

hfft2 static

hfft2(mixed $a, ?array $s = null, ?array $axes = null, string $norm = 'backward'): Tessero\Ext\NDArray

ihfftn static

ihfftn(mixed $a, ?array $s = null, ?array $axes = null, string $norm = 'backward'): Tessero\Ext\NDArray

Inverse of hfftn: the Hermitian half-spectrum of a real n-D signal (scipy.fft.ihfftn).

ihfft2 static

ihfft2(mixed $a, ?array $s = null, ?array $axes = null, string $norm = 'backward'): Tessero\Ext\NDArray

nextFastLen static

nextFastLen(int $target, bool $real = false): int

Smallest efficient FFT length >= target: a product of 2,3,5(,7,11 for complex) (scipy.fft.next_fast_len).

prevFastLen static

prevFastLen(int $target, bool $real = false): int

Largest efficient FFT length <= target (scipy.fft.prev_fast_len).

fftfreq static

fftfreq(int $n, float $d = 1.0): Tessero\Ext\NDArray

rfftfreq static

rfftfreq(int $n, float $d = 1.0): Tessero\Ext\NDArray

fftshift static

fftshift(mixed $a, ?int $axis = null): Tessero\Ext\NDArray

ifftshift static

ifftshift(mixed $a, ?int $axis = null): Tessero\Ext\NDArray