Fungrim entry: 486ab2

Symbol: UnsignedInfinity —

{\tilde \infty}

— Unsigned infinity

This formal symbol represents a quantity with infinite magnitude and undefined sign.

It is typically used to represent the value of meromorphic functions at poles.

The set

\mathbb{C} \cup \left\{{\tilde \infty}\right\}

represents the complex Riemann sphere.

Definitions:

Fungrim symbol	Notation	Short description
`UnsignedInfinity`	${\tilde \infty}$	Unsigned infinity
`CC`	$\mathbb{C}$	Complex numbers

Source code for this entry:

Entry(ID("486ab2"),
    SymbolDefinition(UnsignedInfinity, UnsignedInfinity, "Unsigned infinity"),
    Description("This formal symbol represents a quantity with infinite magnitude and undefined sign."),
    Description("It is typically used to represent the value of meromorphic functions at poles."),
    Description("The set", Union(CC, Set(UnsignedInfinity)), "represents the complex Riemann sphere."))

Topics using this entry

Numbers and infinities

Copyright (C) Fredrik Johansson and contributors. Fungrim is provided under the MIT license. The source code is on GitHub.

2021-03-15 19:12:00.328586 UTC