Unicode: Math Brackets
Font:
ceiling, floor
⌈
⌉
,
⌊
⌋
⟦ ⟧ , ⟨ ⟩ , ⟪ ⟫ , ⟮ ⟯ , ⟬ ⟭
⫍ ⫎ , ⟔ ⟓
angle brackets 〈 〉 ⦑ ⦒ ⧼ ⧽
superscript, subscript variants ⁽ ⁾ ₍ ₎
Square bracket variants ⦋ ⦌ , ⦍ ⦎ , ⦏ ⦐ , ⁅ ⁆
⸢ ⸣ ⸤ ⸥
⦓ ⦔ ⦕ ⦖ ⸦ ⸧
more, see Unicode: Brackets, Quotes «»「」【】《》