dot package:HaTeX
Add a dot accent above a symbol, as used to denote a derivative, like
<math>.
Fill out all available horizontal space with dots.
Centered-dot operator <math>.
Circled dot operator <math>.
Add a triple dot accent above a symbol, as used to denote a third
derivative, like <math>
Add a dot accent above a symbol, as used to denote a second
derivative, like <math>
symbol - greater than with inner dot
symbol - less than with inner dot