Support Newton notation for derivative.

[walking-octopus]

Problem

In the domain of physics, dot notation is often preferred due to its compactness. As of today, ComputeEngine does not recognize it and MathLive fails to correctly render \\ddot{x} = ..., cutting the right padding.

Ideally, it would also be welcome to add dot notation to the on-screen keyboard and/or as a keyboard input chord (similar to say int => integral sign).

[arnog]

@walking-octopus to clarify, you would expect \dot{x} to produce ["D", "x", "t"], that is "derivative of x with respect to t".

What keyboard input shortcuts would you like to see?

[walking-octopus]

You would expect \dot{x} to produce ["D", "x", "t"]?

Yes, of course.

What keyboard input shortcuts would you like to see?

This is more of an issue for MathLive, but I think dot and ddot could get their own autocommands, spawning and focusing a \ddot{placeholder}.

My interest in this issue had been prompted by trying to build an app that needed an input widget for differencial equation systems.