Circumflex Accent

^ (Circumflex Accent) is ASCII code point 94 (0x5E), Unicode U+005E, and a printable punctuation character. It sits above the baseline like a small rooftop — in written language it serves as a diacritical mark (the "hat" in French words like "côte" vs "cote"), though on an ASCII keyboard it stands alone, disconnected from any letter it might modify. Programming repurposed this floating wedge in several incompatible directions. In C, C++, Java, and JavaScript, ^ is the bitwise XOR operator — each bit in the result is 1 only when the corresponding bits of the two operands differ. Python follows suit for integers but also uses ** for exponentiation, while confusingly, many calculators and spreadsheet formulas use ^ for raising to a power, meaning 2^10 evaluates to 1024 in Excel but to 8 in C. Regular expressions assign it yet another meaning: anchoring a pattern to the start of a string, or negating a character class when placed immediately after the opening bracket ([^aeiou] matches any non-vowel). The gotcha emerges when a developer moves between these contexts — writing x ^ 2 in Python expecting a square and getting XOR instead produces no error, just a wrong number that might be close enough to the right answer to pass a casual test. The circumflex originated as a combining mark in Greek, where it indicated a rising-falling pitch on a vowel. Typewriters inherited the shape as a standalone character because dead-key diacritics were mechanically expensive. UTF-8 encodes it as a single byte 0x5E. Unicode classifies it as Sk (Symbol, Modifier) with the name CIRCUMFLEX ACCENT. The true combining circumflex (U+0302) is the character that actually stacks above a letter in modern Unicode, while 0x5E remains a freestanding symbol — a distinction that matters the instant you try to programmatically add an accent to a character and get a caret sitting awkwardly beside it instead.