As well as the familiar equals sign (=) it is also very useful to show if something is not equal to (≠) greater than (〉) or less than (〈). The plus–minus sign is more commonly used than the minus–plus sign. Nov 17, 2025§ (section sign) – refers to a specific section of a legal code, regulation, or document.
In statistics and experimental sciences, the ± sign commonly indicates the confidence interval or uncertainty bounding a range of possible errors in a measurement, often the standard deviation or. In summary, the − symbol, or the minus sign, is a foundational component of mathematical notation. The equals symbol or equal sign is used in mathematics to assert that two expressions have the same value.
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