Math
Geometric Sequence Calculator
nth term and sum of the first n terms of a geometric sequence.
aₙ
Sₙ
Amortization schedule
| # | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
This free Geometric Sequence Calculator covers nth term and sum of the first n terms of a geometric sequence.
a_n = a1 r^{n−1}; finite sum uses (1−r^n)/(1−r) when r ≠ 1. Other math tools are linked below.
Geometric Sequence Calculator — how it works
nth term and sum of the first n terms of a geometric sequence. Typical inputs are First term a₁, Ratio r and n. How it works beside the form states the identity the Geometric Sequence Calculator applies.
FAQ
How do I use the Geometric Sequence Calculator?
Open the Geometric Sequence Calculator, fill First term a₁, Ratio r and n, and read the result. a_n = a1 r^{n−1}; finite sum uses (1−r^n)/(1−r) when r ≠ 1.
What formula does the Geometric Sequence Calculator use?
The Geometric Sequence Calculator uses the identity in How it works. In words: a_n = a1 r^{n−1}; finite sum uses (1−r^n)/(1−r) when r ≠ 1.
Similar calculators
More tools in Math and popular picks.