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modify sample code result #36325

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Oct 12, 2021
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modify sample code result #36325

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2769952
modify sample code result
lijiaqi0612 Oct 11, 2021
2ff4df2
modify sample code
lijiaqi0612 Oct 11, 2021
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16 changes: 7 additions & 9 deletions python/paddle/tensor/fft.py
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Original file line number Diff line number Diff line change
Expand Up @@ -339,7 +339,7 @@ def irfft(x, n=None, axis=-1, norm="backward", name=None):
xp = paddle.to_tensor(x)
irfft_xp = paddle.fft.irfft(xp).numpy()
print(irfft_xp)
# [0. 0. 0. 4.]
# [0. 1. 0. 0.]

"""
return fft_c2r(x, n, axis, norm, forward=False, name=name)
Expand Down Expand Up @@ -477,7 +477,7 @@ def fftn(x, s=None, axes=None, norm="backward", name=None):
import numpy as np
import paddle

x = x = np.mgrid[:4, :4, :4][1]
x = np.mgrid[:4, :4, :4][1]
xp = paddle.to_tensor(x)
fftn_xp = paddle.fft.fftn(xp, axes=(1, 2)).numpy()
print(fftn_xp)
Expand Down Expand Up @@ -631,9 +631,9 @@ def rfftn(x, s=None, axes=None, norm="backward", name=None):
# use axes(2, 0)
print(paddle.fft.rfftn(x, axes=(2, 0)))
# Tensor(shape=[2, 3, 3], dtype=complex64, place=CUDAPlace(0), stop_gradient=True,
# [[[(24+0j), 0j , 0j ],
# [0j , 0j , 0j ],
# [0j , 0j , 0j ]],
# [[[(8+0j), 0j , 0j ],
# [(8+0j), 0j , 0j ],
# [(8+0j), 0j , 0j ]],
#
# [[0j , 0j , 0j ],
# [0j , 0j , 0j ],
Expand Down Expand Up @@ -1267,9 +1267,8 @@ def fftshift(x, axes=None, name=None):
import paddle

x = np.array([3, 1, 2, 2, 3], dtype=float)
scalar_temp = 0.3
n = x.size
fftfreq_xp = paddle.fft.fftfreq(n, d=scalar_temp)
fftfreq_xp = paddle.fft.fftfreq(n, d=0.3)
res = paddle.fft.fftshift(fftfreq_xp).numpy()
print(res)
# [-1.3333334 -0.6666667 0. 0.6666667 1.3333334]
Expand Down Expand Up @@ -1311,9 +1310,8 @@ def ifftshift(x, axes=None, name=None):
import paddle

x = np.array([3, 1, 2, 2, 3], dtype=float)
scalar_temp = 0.3
n = x.size
fftfreq_xp = paddle.fft.fftfreq(n, d=scalar_temp)
fftfreq_xp = paddle.fft.fftfreq(n, d=0.3)
res = paddle.fft.ifftshift(fftfreq_xp).numpy()
print(res)
# [ 1.3333334 -1.3333334 -0.6666667 0. 0.6666667]
Expand Down