Geometric Sequence Calculator
Find a term and finite sum from the first term, common ratio and count.
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USDTHE NUMBERS, MADE CLEARInstant calculation
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Find a term and finite sum from the first term, common ratio and count.
Worked example
Inputs
- First term: 2
- Common ratio: 3
- Number of terms n: 4
Results
- Nth term: 54
- Sum of first n terms: 80
Find a term and finite sum from the first term, common ratio and count.
Reviewed:Common uses
Find a term and finite sum from the first term, common ratio and count.
BEHIND THE NUMBERSFormula & assumptions
aₙ=a₁rⁿ⁻¹; Sₙ=a₁(1−rⁿ)/(1−r); r=1: Sₙ=na₁
Find a term and finite sum from the first term, common ratio and count.