ASCII 61 — =

The equals sign is used for variable assignment in most programming languages ('x = 5'), but its meaning varies significantly by context. In mathematics, '=' asserts equality between expressions. JavaScript distinguishes '==' (loose equality with type coercion) from '===' (strict equality) — a distinction that prevents subtle bugs. In Python, '=' assigns while '==' compares. In SQL, '=' tests equality in WHERE clauses. In HTML attributes, '=' binds values to attribute names. The arrow '=>' denotes lambda functions in JavaScript, C#, and several other modern languages.

Symbol characters in ASCII include mathematical operators, logical notation, and special-purpose marks that serve critical roles across programming, mathematics, and digital communication. Symbols are heavily context-dependent — the same character may act as an arithmetic operator in one language, a regex metacharacter in another, and a shell configuration flag in a third context. This contextual polyvalence makes symbols among the most functionally overloaded characters in computing, requiring careful attention to their meaning in each domain.

In the ASCII encoding table, Equals Sign is assigned code point 61 in decimal (0x3D hexadecimal, 075 octal, 00111101 binary). The 7-bit ASCII standard, first published in 1963 by the American Standards Association, defines exactly 128 characters that remain the foundation of text encoding systems worldwide. UTF-8, the dominant encoding on the modern web, is fully backward compatible with ASCII — every ASCII character is encoded as the identical single byte in UTF-8, guaranteeing that Equals Sign works reliably across all operating systems, programming languages, and internet protocols.