This calculator tool allows you to efficiently perform various mathematical series calculations directly from your web browser.

# Series Calculator

## How to Use the Calculator

To use this series calculator:

- Enter the number of terms in the series (n).
- Input the first term in the series (a1).
- Type in the common difference between the terms (d).
- Click the “Calculate” button to see the result.

## How it Calculates the Results

The calculator uses the formula for the sum of an arithmetic series:
*S = (n/2) * (2 * a1 + (n – 1) * d)*, where:

*n*is the number of terms,*a1*is the first term, and*d*is the common difference between terms.

By substituting the input values into this formula, we can calculate the sum of the arithmetic series.

## Limitations

This calculator:

- Only works with numeric input values.
- Assumes that the series provided is an arithmetic sequence.
- Does not handle very large numbers or numbers with more than 15 digits after the decimal due to precision limitations in JavaScript.
- Displays an error message if all fields are not filled in.