\Xi - LaTeX Symbol

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Ξ

\Xi

The Greek letter Xi (uppercase \Xi) is used in various scientific and mathematical contexts. In mathematics, it often represents a random variable, a set, or a function, depending on the context. In physics, it can denote a type of baryon or a specific wave function.

Examples

Ξ = {x \in R : x^{2} < 1}

Set notation using Xi to represent a set of real numbers whose squares are less than 1.

\Xi = \{ x \in \mathbb{R} : x^2 < 1 \}

P (Ξ = k) = \frac{λ ^{k} e ^{- λ}}{k !}

Probability mass function of a Poisson distribution where Xi is the random variable.

P(\Xi = k) = \frac{\lambda^k e^{-\lambda}}{k!}

Ξ (ω) = n = 0 \sum \infty a_{n} ω^{n}

A power series representation where Xi is a function of omega.

\Xi(\omega) = \sum_{n=0}^{\infty} a_n \omega^n