A note in the margin of a document.
A specific note or piece of information written in such a notation.
This section lists all algebraic notation used in this book. (Using notations would be incorrect).
The act, process, method, or an instance of representing by a system or set of marks, signs, figures, or characters.
A system of characters, symbols, or abbreviated expressions used in an art or science or in mathematics or logic to express technical facts or quantities.