U+23AF • symbol
The Horizontal Line Extension (⎯) is a typographic symbol used to extend horizontal lines in technical or mathematical notation. It is often used to visually continue lines or overbars across multiple characters or expressions.
The Symbol For Horizontal Line Extension (⎯) is a unicode character in the Basic Multilingual Plane Plane. It is found in the Miscellaneous Technical block and was approved as part of Unicode Version 3.2 in 2002
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