1.3 Sigma Notation

What is Sigma Notation used for?

to represent the sum of a number of consecutive terms in a sequence

What does the uppercase sigma, “∑” represent?

the sum of

What does the uppercase sigma, “i” represent?

the index value

the position of a term in a sequence

How would you represent the Following in Sigma Notation?: 5,8,11,14,17,20,23,26,29,32

How would you read the following photo?

The sum of the terms in the sequence from the kth-term to the nth-term.

How do you calculate Sigma Notation?

∑u_i=u₁+u₂+u_3…u_n

Use the general term and repeat it for each term being calculated in the sum