[Scipy-tickets] [SciPy] #1506: scipy.fftpack.hilbert differs from textbook definition
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Sun Sep 4 03:28:41 CDT 2011
#1506: scipy.fftpack.hilbert differs from textbook definition
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Reporter: xinchuan | Owner: somebody
Type: defect | Status: new
Priority: normal | Milestone: Unscheduled
Component: scipy.fftpack | Version: 0.9.0
Keywords: |
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Changes (by rgommers):
* component: Other => scipy.fftpack
Comment:
The difference is only a minus sign, and the Wikipedia article on the
Hilbert transform mentions that different books use conflicting
definitions (with and without minus sign). So I think the right thing to
do is to document this more clearly and point out that the user may need
to add a minus sign. Changing the code breaks backwards compatibility for
a very minor gain.
Can you confirm that the documentation and implementation actually agree?
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Ticket URL: <http://projects.scipy.org/scipy/ticket/1506#comment:1>
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