diff options
Diffstat (limited to 'numpy/fft/fftpack.py')
| -rw-r--r-- | numpy/fft/fftpack.py | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/numpy/fft/fftpack.py b/numpy/fft/fftpack.py index 472d3e06c..2f8982d3c 100644 --- a/numpy/fft/fftpack.py +++ b/numpy/fft/fftpack.py @@ -297,8 +297,7 @@ def rfft(a, n=None, axis=-1): axis of the output is therefore ``n//2+1``. When ``A = rfft(a)`` and fs is the sampling frequency, ``A[0]`` contains - the zero-frequency term 0*fs, which must be purely real due to the Hermite - symmetry. + the zero-frequency term 0*fs, which is real due to Hermitian symmetry. If `n` is even, ``A[-1]`` contains the term representing both positive and negative Nyquist frequency (+fs/2 and -fs/2), and must also be purely |