The Miscellaneous Mathematical Symbols-A block spans U+27C0–U+27EF, 48 codepoints in Plane 0 (Basic Multilingual Plane). Every one of them is assigned in Unicode 16.0.

All of its characters have the script value Common: they are shared across writing systems rather than tied to one.

By general category: 36 math symbols (Sm), 6 opening brackets (Ps), 6 closing brackets (Pe).

The first 28 arrived in Unicode 3.2 (2002); later additions came in 4.1 (7), 5.0 (4), 5.1 (5), 6.0 (2), 6.1 (2).