Geometric series (sum of the numbers)


A geometric progression, also known as a geometric sequence, is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio. The sum of the numbers in a geometric progression can be calculated by the initial value and common ratio of the progression.

Related formulas


SNth term of the series (dimensionless)
aFirst term (dimensionless)
rCommon ratio (dimensionless)
nNumber of terms (dimensionless)