A quantity displayed below the normal line of text (and generally in a smaller point size), as the "" in, is called a subscript. Subscripts are commonly used to indicate indices ( is the entry in theth row andth column of amatrix), partial differentiation ( is an abbreviation for), and a host of other operations and notations in mathematics.

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• subscript two
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Cite this as:

Weisstein, Eric W. "Subscript." FromMathWorld--A Wolfram Resource.https://mathworld.wolfram.com/Subscript.html

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