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Summation Calculator

To find the sum of a series, fill the respected boxes with starting and ending values, and equation in the summation notation or sigma calculator.

This will be calculated:

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This Summation calculator (solver) computes the partial sum of a series. User can choose between

  • Simple sum calculator (Enter numbers simply)
  • Sigma notation calculator (equation needed)

What is Summation?

Summation aka sum is the result obtained after adding the numbers of a sequence.

Summation notation () is used to represent a long sum in a single expression.

Summation notation Example:

Solve:

Solution:

Step 1: understand the operations:

Values = 3 to 7 = 3, 4, 5, 6, 7

Equation = 2n - 3

Step 2: Put the values in the equation:

3 = 2(3) - 3 = 3

4 = 2(4) - 3 = 5

5 = 2(5) - 3 = 7

6 = 2(6) - 3 = 9

7 = 2(7) - 3 = 11

Step 3: Add all the results:

= 3 + 5 + 7 + 9 + 11

= 35