sigma

Front

What does 'sigma' mean?

Back

Sigma (Σ) is a letter in the Greek alphabet used in mathematics to represent the sum of a series of numbers.

Front

What is the symbol for sigma?

Back

The symbol for sigma is Σ.

Front

How do you use sigma in math?

Back

You use sigma to add up a list of numbers, like Σ(1 + 2 + 3) means add 1, 2, and 3 together.

Front

What is a series in math?

Back

A series is the sum of the terms of a sequence of numbers.

Front

What is an example of a simple series?

Back

An example of a simple series is 1 + 2 + 3 + 4 = 10.

Front

What does 'sum' mean?

Back

Sum means the total amount you get when you add numbers together.

Front

What is a sequence?

Back

A sequence is a list of numbers in a specific order.

Front

Can you give an example of a sequence?

Back

An example of a sequence is 2, 4, 6, 8, which adds 2 each time.

Front

What is the first step in using sigma?

Back

The first step is to identify the numbers you want to add.

Front

What does 'n' represent in sigma notation?

Back

In sigma notation, 'n' usually represents the number of terms to be added.