diff options
Diffstat (limited to 'numpy/fft/info.py')
| -rw-r--r-- | numpy/fft/info.py | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/numpy/fft/info.py b/numpy/fft/info.py index 916d452f2..f7fc95453 100644 --- a/numpy/fft/info.py +++ b/numpy/fft/info.py @@ -116,7 +116,15 @@ The inverse DFT is defined as \\qquad m = 0,\\ldots,n-1. It differs from the forward transform by the sign of the exponential -argument and the normalization by :math:`1/n`. +argument and the default normalization by :math:`1/n`. + +Normalization +------------- +The default normalization has the direct transforms unscaled and the inverse +transforms are scaled by :math:`1/n`. It is possible to obtain unitary +transforms by setting the keyword argument ``norm`` to ``"ortho"`` (default is +`None`) so that both direct and inverse transforms will be scaled by +:math:`1/\\sqrt{n}`. Real and Hermitian transforms ----------------------------- |