Arithmetic Sequence Calculator
Calculate terms and sum of arithmetic sequences with our online calculator.
Category: Calculator
Arithmetic Sequence Calculator
Calculate terms and sum of an arithmetic sequence
About Arithmetic Sequences
An arithmetic sequence is a sequence of numbers where each term differs from the previous by a constant value, called the common difference.
- The formula for the nth term is: an = a + (n-1)d
- The formula for the sum of n terms is: Sn = n/2 × (2a + (n-1)d)
- Alternatively: Sn = n/2 × (first term + last term)
- Example: 2, 5, 8, 11, 14, ... (a = 2, d = 3)