# 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

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

2019-10-05 13:11:19.856591 UTC