Symbol  Format  Data 

$  Code Point  U+0024 
TeX  \$ 

SVG 
The ‘$’ (dollar sign) symbol is used to represent various forms of currency around the world, most notably the United States dollar. For example, $20 represents twenty dollars.
In LaTeX, the dollar sign is used to denote the beginning and end of mathematical mode. For example:
$a^2 + b^2 = c^2$
In this LaTeX code, the expressions inside the dollar signs denote a mathematical formula.
The cent sign is used to express a fraction of a whole currency unit. For example, a cent in USD is equal to onehundredth of a dollar.
The euro sign, €, is used to represent the euro, the official currency of the Eurozone in the European Union.
The pound sign, £, is used to represent the pound sterling, the official currency of the United Kingdom.
The yen sign is used for the Japanese yen and Chinese yuan currencies.