Online calculator to calculate the sum of the terms in a geometric sequence.
If A1, A2, ... , An, ... is a geometric sequence with common ratio r, this calculator calculates the sum Sn given by
1 - Enter the first term A1 in the sequence, the common ratio r and n n the number of terms in the sum then press enter. A1 and r may be entered as an integer, a decimal or a fraction. n must be a positive integer.