The slashed zero glyph is often used to distinguish the digit zero from the Latin script letter O anywhere that the distinction needs emphasis particularly in encoding systems scientific and engineering applications computer programming and telecommunications. It was commonly used during the punched card era when programs were typ. The display will read 597E24 or 597e24.
It thus helps to differentiate characters that would otherwise be homoglyphs.
502 five hundred and two could be mistaken for 52 fifty two without the zero in the tens place. Where a function equals the value zero 0. The inequality mathleqmath is called a weak inequality while the inequality mathltmath is called a strong inequality. In mathematics a zero also sometimes called a root of a real- complex- or generally vector-valued function f is a member x of the domain of f such that fx vanishes at x.