<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">It seems to me that Wolfram is following yet another path. From <a href="http://mathworld.wolfram.com/Autocorrelation.html">http://mathworld.wolfram.com/Autocorrelation.html</a> and more importantly <a href="http://mathworld.wolfram.com/Cross-Correlation.html">http://mathworld.wolfram.com/Cross-Correlation.html</a>, equation (5):<div><br></div><div>z_mathworld[k] = sum_n conj(a[n]) * v[n+k] </div><div><span class="Apple-tab-span" style="white-space:pre"> </span>= conj( sum_n a[n] * conj(v[n+k]) )</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>= conj( z_numpyDocstring[k] )</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>= conj( z_numpyCode[-k] )</div><div><br></div><div>is the conjugate of what the numpy docstring says. So, now we have at least three definitions to chose from :-)</div><div><br></div><div>Cheers,</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>Bernhard</div><div><br><div><div>On 09.10.2013, at 22:19, David Goldsmith <<a href="mailto:d.l.goldsmith@gmail.com">d.l.goldsmith@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><div>Looks like Wolfram MathWorld would favor the docstring, but the possibility of a "use-domain" dependency seems plausible (after all, a similar dilemma is observed, e.g., w/ the Fourier Transform)--I guess one discipline's future is another discipline's past. :-)</div>
<div><br></div><a href="http://mathworld.wolfram.com/Autocorrelation.html">http://mathworld.wolfram.com/Autocorrelation.html</a><div><br></div></div></blockquote></div><br></div></body></html>