U03A3

U03A3 is a Unicode character that belongs to the Greek and Coptic block. Its code point is U+03A3, which identifies it uniquely within the Unicode standard. This character represents the Greek capital letter Sigma, specifically the standard form used at the end of a word, known as the "final sigma."

In Greek alphabet usage, Sigma has two forms: the uppercase (Σ) and the lowercase (σ), with an alternative lowercase forms (ς) used exclusively at the end of words. The uppercase Sigma (U+03A3) is utilized in various contexts, including mathematical notation, scientific symbols, and Greek language texts.

The Unicode standard, developed to support the consistent encoding of text in most of the world's writing systems, assigns U+03A3 to ensure proper digital representation of Greek capital Sigma across different platforms and devices. The character is part of the Basic Multilingual Plane, meaning it is stored within the simpler, first 65,536 code points of Unicode.

In programming and text processing, U+03A3 can be referenced by its Unicode code point or HTML entity, which is Σ for general use. Its inclusion in Unicode facilitates the correct rendering and manipulation of Greek text, especially in academic, scientific, and technical documentation.

Overall, U+03A3 is an essential character for representing Greek uppercase Sigma in digital formats, maintaining fidelity to the script's traditional and modern usage.