notation

1. The act, process, method, or an instance of representing by a system or set of marks, signs, figures, or characters. (uncountable)
2. 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. (countable, uncountable) · This section lists all algebraic notation used in this book.· The notations used in the two books differed.
3. A specific note or piece of information written in such a notation. (countable) · She made a notation in the margin of the book.

الجمع notations