diff options
Diffstat (limited to 'numpy/fft/helper.py')
| -rw-r--r-- | numpy/fft/helper.py | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/numpy/fft/helper.py b/numpy/fft/helper.py index 0a475153f..058f6864d 100644 --- a/numpy/fft/helper.py +++ b/numpy/fft/helper.py @@ -125,8 +125,8 @@ def fftfreq(n, d=1.0): """ Return the Discrete Fourier Transform sample frequencies. - The returned float array `f` contains the frequency bin centers in cycles - per unit of the sample spacing (with zero at the start). For instance, if + The returned float array `f` contains the frequency bin centers in cycles + per unit of the sample spacing (with zero at the start). For instance, if the sample spacing is in seconds, then the frequency unit is cycles/second. Given a window length `n` and a sample spacing `d`:: @@ -140,7 +140,7 @@ def fftfreq(n, d=1.0): Window length. d : scalar, optional Sample spacing (inverse of the sampling rate). Defaults to 1. - + Returns ------- f : ndarray @@ -172,11 +172,11 @@ def fftfreq(n, d=1.0): def rfftfreq(n, d=1.0): """ - Return the Discrete Fourier Transform sample frequencies + Return the Discrete Fourier Transform sample frequencies (for usage with rfft, irfft). - The returned float array `f` contains the frequency bin centers in cycles - per unit of the sample spacing (with zero at the start). For instance, if + The returned float array `f` contains the frequency bin centers in cycles + per unit of the sample spacing (with zero at the start). For instance, if the sample spacing is in seconds, then the frequency unit is cycles/second. Given a window length `n` and a sample spacing `d`:: |