Learning focus 1
Use an ellipsis for arithmetic terms, a comma list, or a formula with bounds.
Free online calculator
Sum of Series Calculator
Add finite arithmetic series, explicit term lists, or indexed polynomial sums with exact results.
Step-by-step solutions
Clear, detailed explanations
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Accurate answers in seconds
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How to Use the Sum of Series Calculator
1
Enter the series
Use an ellipsis for arithmetic terms, a comma list, or a formula with bounds.
2
Identify the finite rule
The calculator determines the term count or evaluates the indexed formula.
3
Compute the exact sum
The result is returned without rounding when an exact value is available.
Example
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What the Sum of Series Calculator Helps You Understand
Add finite arithmetic series, explicit term lists, or indexed polynomial sums with exact results.
Learning focus 2
The calculator determines the term count or evaluates the indexed formula.
Learning focus 3
The result is returned without rounding when an exact value is available.
Input tips
- • Use an ellipsis for arithmetic terms, a comma list, or a formula with bounds.
- • Enter 1 + 2 + ... + 100.
Common mistakes to avoid
- • Using an infinite-series formula when the convergence condition fails.
- • Miscounting the number of terms in a finite arithmetic series.
Frequently Asked Questions
How do I enter 1 through 100?
Enter 1 + 2 + ... + 100.
Can I sum a formula?
Yes. Use a form such as Sum n^2 from 1 to 10.