# What is the symbol for sum?

## What is the symbol for sum?

sigma
Simple sum The symbol Σ (sigma) is generally used to denote a sum of multiple terms. This symbol is generally accompanied by an index that varies to encompass all terms that must be considered in the sum.

What is a sum in algebraic expressions?

: the aggregate of two or more numbers or quantities taken with regard to their signs (as + or −) according to the rules of addition in algebra the algebraic sum of −2, 8, and −1 is 5 — compare arithmetical sum.

Where is the sum symbol in Word?

Use the Alt + X shortcut in Word for Windows, for example type 03A3 then Alt + X to enter Σ. Or enter the value into Character Code fields in Symbol dialog boxes to jump to that symbol.

### Which is an example of a summation expression?

This expression means sum the squared values of x, starting at x1 and ending with xn. Arithmetic operations may be performed on variables within the summation. For example: This expression means sum the values of x, starting at x 1 and ending with x n and then square the sum.

What does the expression SUM the values of X mean?

This expression means sum the values of x, starting at x3 and ending with x10. The limits of summation are often understood to mean i = 1 through n. Then the notation below and above the summation sign is omitted. Therefore this expression means sum the values of x,…

What does the notation below the summation sign mean?

Then the notation below and above the summation sign is omitted. Therefore this expression means sum the values of x, starting at x 1 and ending with x n. This expression means sum the squared values of x, starting at x1 and ending with xn. Arithmetic operations may be performed on variables within the summation.

#### Which is the symbol for the summation of many similar terms?

Mathematical notation uses a symbol that compactly represents summation of many similar terms: the summation symbol,, an enlarged form of the upright capital Greek letter sigma. This is defined as