⟮ ⟯
⟮ ⟯ are used as delimiters in mathematical expressions, often to group terms or denote specific operations. They are similar to parentheses but can be used to provide additional clarity or distinction in complex equations.
Using ⟮ ⟯ to group terms in a binomial expansion
⟮a + b⟯^2 = a^2 + 2ab + b^2
Function notation using ⟮ ⟯ as delimiters
f⟮x⟯ = x^2 + 3x + 2
Denoting a point in the Cartesian plane using ⟮ ⟯ as delimiters
⟮x, y⟯ ∈ ℂ^2