U+1D70D "𝜍" Mathematical Italic Small Final Sigma Unicode Character

U+1D70D "𝜍" Mathematical Italic Small Final Sigma is a specialized typographic symbol used primarily in mathematical and scientific notation to represent the final or word-final form of the lowercase sigma, distinguished from the standard medial or initial form (𝜎, U+1D70E). This character belongs to the Mathematical Alphanumeric Symbols block, which was introduced to separate mathematical expressions from regular text and to provide distinct italic variants for letters that have contextual forms in Greek. Unlike the common final sigma (ς) found in standard Greek text, the italic version U+1D70D is intended for use in formulas, equations, and academic writing where consistent italic styling is required for variables and constants.