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Oct 31, 2017 at 22:41 answer added Olli Niemitalo timeline score: 1
Oct 31, 2017 at 22:16 comment added Olli Niemitalo Found similar notation elsewhere, $r_{xx}$ is autocorrelation of $x$.
Oct 25, 2017 at 14:29 answer added user28715 timeline score: 1
S Oct 25, 2017 at 11:44 history suggested Rodrigo de Azevedo CC BY-SA 3.0
Minor improvements
Oct 25, 2017 at 11:42 review Suggested edits
S Oct 25, 2017 at 11:44
Oct 25, 2017 at 11:22 history asked Jona CC BY-SA 3.0