I would like to understand how to refer to a given matrix in my English sentence.
The matrix, M, refers to model A.
M matrix refers to model A.
Which one is correct?
English Language Learners Stack Exchange is a question and answer site for speakers of other languages learning English. It only takes a minute to sign up.Sign up to join this community
The preferred phrasing is
The matrix M refers to model A
without commas, but with appropriate typesetting if possible. (Boldface upper case is common, but see also Matrix (mathematics) - Notation on Wikipedia).