\Iota - LaTeX Symbol

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I

\Iota

The Greek letter Iota (\Iota) is used in mathematics and science to represent a small quantity or a specific function. It is the ninth letter of the Greek alphabet and is often used in various contexts, such as denoting an index or a small increment.

Examples

I = {1, 2, 3, \dots, n}

Set notation using Iota to represent a sequence of natural numbers.

\Iota = \{1, 2, 3, \ldots, n\}

I (x) = x + ϵ

Function notation where Iota represents a small increment to x.

\Iota(x) = x + \epsilon

i \in I \sum a_{i}

Summation over a set indexed by Iota.

\sum_{i \in \Iota} a_i