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Jun 30, 2016 at 13:15 comment added Gerry Myerson I think Newton used it long before Einstein.
Jun 30, 2016 at 12:50 comment added Jérôme JEAN-CHARLES @GerryMyerson I agree, yet in number theory and combinatorics summation is more common that derivative. You are right that in fact Einstein was a user of the point as a derivative as it kept some heavy torsor calculation much lighter. More over the proper usage is $\dot \mu ([1,N]) $ or $\dot \mu ([N]) $ as $M(N)$ .
Jun 30, 2016 at 2:57 comment added Gerry Myerson One problem with a dot is that in some contexts it stands for derivative, but you want to use it for a summation, which is pretty nearly the opposite concept.
Jun 29, 2016 at 20:46 comment added Jérôme JEAN-CHARLES @aosjckajsd You must have a problem with your browser : I have the point on my screen. As I said the point should be must bigger, I still think this is nice and not ambiguous but habits die hard...Now a dot is mot discrete and as generic as capitalizing a letter but save the M ...
Jun 28, 2016 at 23:48 comment added Suvrit which shows that the idea of having a dot did not quite make things clearer :-)
Jun 28, 2016 at 23:02 comment added Gerry Myerson I think you missed the dot over the mu in the suggested notation for the summatory function.
Jun 28, 2016 at 19:50 review First posts
Jun 28, 2016 at 19:51
Jun 28, 2016 at 19:50 history answered aosjckajsd CC BY-SA 3.0