# Summation Calculator

**Summation** (or) sum is the sum of consecutive terms of a sequence.

## What is Summation Calculator?

'Cuemath's Summation Calculator' is an online tool that helps to calculate the sum of the given series. Cuemath's online Summation Calculator helps you to calculate the sum of the given series in a few seconds.

NOTE: Enter function in 'n' only.

## How to Use Summation Calculator?

Please follow the steps below to calculate the sum of the given series:

**Step 1:**Enter the function, and numbers in the given input boxes.**Step 2:**Click on the**"Calculate"**button to find the sum of the given series**Step 3:**Click on the**"Reset"**button to clear the fields and find for different values.

## How to Find Summation?

To write the sum of more terms, say n terms, of a sequence {a_{n}}, we use the summation notation instead of writing the whole sum manually by:

**a1 + a2 +... + an = \(\sum_{i=1}^{n} a_{i}\)**

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Use our free online calculator to solve challenging questions. With Cuemath, find solutions in simple and easy steps.

**Solved Example:**

Find \(\sum_{n=1}^{5} n\)

**Solution:**

Find sum up to 5 terms for a given function 'n'

= 1 + 2 + 3 + 4 + 5

= 15

Similarly, you can try the calculator to find the sum of the series for the following:

- \(\sum_{n=1}^{4} n^2\)
- \(\sum_{n=1}^{7} (n + 1)^2\)

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