# Quick Answer: What Is The Symbol That Looks Like An E?

## What is small Sigma?

Sigma (uppercase Σ, lowercase σ) is the 18th letter of the Modern Greek alphabet.

The small letter sigma (σ) is used to represent standard deviation in math and statistics.

It is also used to show syllable in linguistic, a shielding constant in chemistry and sum of divisors in math..

## What is this symbol Σ?

Sigma /ˈsɪɡmə/ (uppercase Σ, lowercase σ, lowercase in word-final position ς; Greek: σίγμα) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase ∑ is used as an operator for summation.

## What is the E shaped symbol in math?

The element-of symbol is used in mathematical set theory to indicate that a point, object, or number belongs to a certain set. The symbol resembles the lowercase Greek letter epsilon, but stretched out ( ). The symbol is read “is an element of,” “is a member of,” “is in,” or “belongs to.”

## What is this symbol called []?

(Note that the hyphen and the dash are not the same.) The paired {} are what Americans call braces and the paired [] are what Americans call brackets; the British may have other terms for them. The ‘ is the apostrophe or single quote; the “ is the quotation mark or double quote.

## What is an Ampersat?

Noun. ampersat (plural ampersats) The at sign (@).

## What does the Big E symbol mean in math?

Σ This symbol (called Sigma) means “sum up”

## What does the weird e symbol mean in math?

It’s the Greek capital letter Σ sigma. Roughly equivalent to our ‘S’. It stands for ‘sum’. Read this for starters.

## What does sigma look like?

Sigma is the 18th letter of the Greek alphabet and is equivalent to our letter ‘S’. In mathematics, the upper case sigma is used for the summation notation. The lower case sigma stands for standard deviation. … Neither of them looks like our letter ‘S’, but they are both the Greek equivalent of it.

## What does the symbol that looks like an E mean?

Loading when this answer was accepted… This symbol is a Greek letter called (capital) sigma. It’s used to denote sums.

## What does this symbol mean in maths?

< Less Than and > Greater Than. This symbol < means less than, for example 2 < 4 means that 2 is less than 4. This symbol > means greater than, for example 4 > 2. ≤ ≥ These symbols mean ‘less than or equal to’ and ‘greater than or equal to’ and are commonly used in algebra. In computer applications <= and >= are used.

## What does delta mean?

English Language Learners Definition of delta : the fourth letter of the Greek alphabet. : a piece of land shaped like a triangle that is formed when a river splits into smaller rivers before it flows into an ocean. US : an area of low land along the Mississippi River that is mainly in the state of Mississippi.