U+299E "⦞" Angle with S Inside Unicode Character

U+299E "⦞" Angle with S Inside is a specialized mathematical symbol used primarily in the context of geometric notation and formal logic, representing an angle that contains the letter S, often signifying a specific angle measure or a variable angle in diagrams and proofs. It belongs to the Miscellaneous Mathematical Symbols-B block, which contains a variety of signs for advanced mathematical typography. The symbol is typically rendered as a right angle or acute angle shape with the uppercase S inscribed within its interior, allowing it to function as a distinct notation in academic or technical documents.