Geometric series sum
Calculate the first n terms of a geometric series, including ratio one, with configurable precision.
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First term
Result
First n terms
Enter parameters to calculate
: 0 · Decimal places: 0
What this tool does
- Sum growth series
- Verify geometric formulas
Example
Input
1,2,5
Output
S5 = 31
Enter first term, ratio, and number of terms.
Frequently asked questions
How is ratio one handled?
The sum is first term times terms.
Must the term count be an integer?
Yes, a positive integer.
How are decimals handled?
Six decimal places by default.
Keywords：等比数列求和geometric series