Arithmetic Series Calculator

Arithmetic Sequence Sum

An arithmetic series adds terms that increase or decrease by a constant difference.

Formula: sum = n / 2 x [2a + (n - 1)d].

Understanding Arithmetic Series

1. What This Calculator Measures

An arithmetic series is the sum of terms that change by a constant difference.

2. How the Calculation Works

The calculator finds the last term, then uses the average of first and last terms multiplied by the number of terms.

3. Formula or Rule Used

sum = n / 2 x (first term + last term).

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