Talk:Mean squared displacement
|The content of Root mean square fluctuation was merged into Mean squared displacement on 15 January 2016. For the contribution history and old versions of the redirected page, please see ; for the discussion at that location, see its talk page.|
|WikiProject Physics||(Rated Start-class, Low-importance)|
|WikiProject Statistics||(Rated Start-class, Low-importance)|
The expanded formula shown on the page should be <x^2> + x0^2 - 2<x>*x0
MSD main equation units inconsistency
Hi, fellow Wikipedia editors,
I believe the first equation for the MSD is incorrect in the sense that it provides the wrong units as an answer. The units for the MSD should be [L²], whereas the multiplication by (1/T) outside the summation term makes it result on units of [L²/T].
My suggestion is to replace the symbol T which gives the sense of "time" here (and so is described just below the equation), while it actually seems to be playing the role of a "number of discrete samples".
Please take a look at this request, I'm not an Wikipedia editor myself but as an user I struggled with this equation during a code implementation.