From: <jd...@us...> - 2007-10-28 16:35:25
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Revision: 4040 http://matplotlib.svn.sourceforge.net/matplotlib/?rev=4040&view=rev Author: jdh2358 Date: 2007-10-28 09:35:18 -0700 (Sun, 28 Oct 2007) Log Message: ----------- fixed some bugs in convolve Modified Paths: -------------- trunk/py4science/examples/skel/convolution_demo_skel.py trunk/py4science/workbook/convolution.tex trunk/py4science/workbook/intro_sigproc.tex Modified: trunk/py4science/examples/skel/convolution_demo_skel.py =================================================================== --- trunk/py4science/examples/skel/convolution_demo_skel.py 2007-10-28 15:18:02 UTC (rev 4039) +++ trunk/py4science/examples/skel/convolution_demo_skel.py 2007-10-28 16:35:18 UTC (rev 4040) @@ -40,7 +40,7 @@ # evaluate the impulse response function, and numerically convolve it # with the input x r = XXX # evaluate the impulse function -y = XXX # convultion of x with r +y = XXX # convolution of x with r y = XXX # extract just the length Nt part # compute y by applying F^-1[F(x) * F(r)]. The fft assumes the signal Modified: trunk/py4science/workbook/convolution.tex =================================================================== --- trunk/py4science/workbook/convolution.tex 2007-10-28 15:18:02 UTC (rev 4039) +++ trunk/py4science/workbook/convolution.tex 2007-10-28 16:35:18 UTC (rev 4040) @@ -3,9 +3,9 @@ The output of a linear system is given by the convolution of its impulse response function with the input. Mathematically -\[ +\begin{equation} y(t) = \int_0^t x(\tau)r(t-\tau)d\tau -\] +\end{equation} This fundamental relationship lies at the heart of linear systems analysis. It is used to model the dynamics of calcium buffers in neuronal synapses, where incoming action potentials are represented as Modified: trunk/py4science/workbook/intro_sigproc.tex =================================================================== --- trunk/py4science/workbook/intro_sigproc.tex 2007-10-28 15:18:02 UTC (rev 4039) +++ trunk/py4science/workbook/intro_sigproc.tex 2007-10-28 16:35:18 UTC (rev 4040) @@ -12,4 +12,4 @@ analyses, such as historgrams (\texttt{hist}), auto and cross correlations (\texttt{acorr} and \texttt{xcorr}), power spectra and coherence spectra (\texttt{psd}, \texttt{csd}, \texttt{cohere} and -\texttt{specgram}. +\texttt{specgram}). This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site. |