Σ

Technical information

Symbol	Σ
Name	Greek capital letter sigma
Unicode number	U+03A3
Category	Greek capital letter normal

Description

The Unicode character Σ, or U+03A3, is known as the "Greek Capital Letter Sigma". It belongs to the "Greek and Coptic" block and falls under the "Letter, Uppercase" category in the Unicode standard. This character is used in the Greek alphabet, where it represents the 18th letter and has two forms: the uppercase "Σ" and the lowercase "σ" or "ς" at the end of a word. In mathematics and science, the uppercase Sigma is often used to represent the summation symbol. The specific usage and meaning can vary based on the context in which it's used.

Encoding

HTML Entity	Σ
HTML Entity (hex)	Σ
HTML Entity (named)	Σ
URL Escape Code	%CE%A3
UTF-8 (hex)	0xCE 0xA3
UTF-8 (binary)	11001110:10100011
UTF-16	0x03A3
UTF-32	0x000003A3

Source Code

C, C++, and Java	"\u03A3"
CSS Code	\03A3
JavaScript	"\u03A3"
Perl	\x{03A3}
Python 2	u"\u03A3"
Python 3	\u03A3
Ruby	\u{03A3}

Preview

This Unicode character looks like this Σ in sentence and in bold like this Σ and in italic like this Σ.

CSS Property: font-weight

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HTML Forms and Input

input

disabled input

input-group

select

button

Code examples in HTML and CSS

<span>&#931;</span>

span {
    content: "\03A3";
}

The symbol in different fonts

-apple-system

Apple Color Emoji

Arial

BlinkMacSystemFont

Courier New

Georgia

Droid Sans

Helvetica

Noto Sans

Oxygen

Roboto

"Segoe UI"

sans-serif

Segoe UI Emoji

Segoe UI Symbol

system-ui

Times New Roman

Ubuntu

Verdana

Σ