pyoculus.solvers.qfm Namespace Reference

Classes
class	QFM

Functions
	rfft1D (f)
	perform 1D Fourier transform from real space to cosine and sine
	irfft1D (cos_in, sin_in, nfft_multiplier=1)
	perform 1D inverse Fourier transform from cosine and sine to real space
	rfft2D (f, mpol=None, ntor=None)
	perform 2D Fourier transform from real space to cosine and sine
	irfft2D (cn, sn, nfft_theta=None, nfft_zeta=None)
	perform 2D Fourier transform from real space to cosine and sine

Variables
	nax = np.newaxis

Function Documentation

irfft1D()

pyoculus.solvers.qfm.irfft1D	(		cos_in,
			sin_in,
			nfft_multiplier = 1 )

perform 1D inverse Fourier transform from cosine and sine to real space

Parameters

cos_in	The cosine components. If cos_in is 2D, then the last axis will be the axis along which FFT was computed
sin_in	The sine components
nfft_multiplier	The number of output points will be this*(cos_in.shape[-1] - 1)

Returns

the function value in real space

irfft2D()

pyoculus.solvers.qfm.irfft2D	(		cn,
			sn,
			nfft_theta = None,
			nfft_zeta = None )

perform 2D Fourier transform from real space to cosine and sine

Parameters

cn	the cosine components
sn	the sine components
nfft_theta,the	number of theta points on output
nfft_zeta,the	number of zeta points on output

Returns

fout the function output

rfft1D()

pyoculus.solvers.qfm.rfft1D

(

f

)

perform 1D Fourier transform from real space to cosine and sine

Parameters

f	the data in real space. If f is 2D, then the last axis will be the axis along which FFT is computed

Returns

cosout, sinout the cosine and sine components

rfft2D()

pyoculus.solvers.qfm.rfft2D	(		f,
			mpol = None,
			ntor = None )

perform 2D Fourier transform from real space to cosine and sine

Parameters

f	the data in real space. If f is 2D, then the last axis will be the axis along which FFT is computed

Returns

fftcos, fftsin the cosine and sine components, m from 0 to mpol, n from -ntor to ntor

Variable Documentation

nax

pyoculus.solvers.qfm.nax = np.newaxis