Category:Indices
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This category contains results about Indices.
Definitions specific to this category can be found in Definitions/Indices.
- Set Theory:
- Index: an element of an indexing set
- Index set, set of indices: other names for an indexing set
- Matrix Theory:
- Index of Matrix Element: one of the two parameters which specifies an element of a matrix
- Arithmetic:
- Index notation: another word for scientific notation
- Algebra and Analysis:
- Index (Algebra): the $y$ term in expressions such as $x^y$, more commonly known as the exponent of $x$
- Index of Root: the $n$ term in expressions such as $\sqrt [n] x$
- Index variable: the bound variable $j$ in the summation $\ds \sum_{j \mathop = 1}^n a_j$
- Statistics:
- Index number: A figure used to show the variation in a quantity over a period of time.