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Sigma notation is also known as summation notation and is a way to represent a sum of numbers. It is especially useful when the numbers have a specific pattern or would take too long to write out without abbreviation. A summand is an expression being summed. It directly follows the sigma symbol.

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The symbol indicates summation and is used as a shorthand notation for the sum of terms that follow a pattern. For example, the sum of the first 4 squared integers, 12+22+32+42, follows a simple pattern: each term is of the form i2, and we add up values from i=1 to i=4.

In this page you can discover 25 synonyms, antonyms, idiomatic expressions, and related words for summation, like: addition, aggregate, sum, summary, totalization, amount, sum total, total, totality, tale and recapitulation.

A series can be represented in a compact form, called summation or sigma notation. The Greek capital letter, , is used to represent the sum. The series 4+8+12+16+20+24 can be expressed as 6 n=14n .

Summation notation is often known as sigma notation because it uses the Greek capital letter sigma, , to represent the sum.

Often mathematical formulae require the addition of many variables Summation or sigma notation is a convenient and simple form of shorthand used to give a concise expression for a sum of the values of a variable.

Often mathematical formulae require the addition of many variables Summation or sigma notation is a convenient and simple form of shorthand used to give a concise expression for a sum of the values of a variable. Let x1, x2, x3, xn denote a set of n numbers. x1 is the first number in the set.