Geometric progression Calculator

Calculates the n-th term and sum of the geometric progression with the common ratio.

initial term a
common ratio r
number of terms n
    1. n=1,2,3...

the n-th term an
    1.  
sum Sn
    1.  
    Geometric progression
    [1-4] /4Disp-Num
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    [1]  2019/04/15 19:26   Male / 20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    To calculate some possible returns for a faucet bet.
    [2]  2019/02/15 08:04   Male / Under 20 years old / Elementary school/ Junior high-school student / Useful /
    Purpose of use
    math problem
    Comment/Request
    cool
    [3]  2018/03/17 07:43   Female / Under 20 years old / High-school/ University/ Grad student / Not at All /
    Purpose of use
    I was looking for a calculator to find the common ratio of a sequence when given the first 3 numbers of that sequence. I can''t seem to find one of those...
    [4]  2013/03/23 03:56   Male / 50 years old level / Others / A little /
    Purpose of use
    Von Neumann probe estimate. 400 billion stars in the galaxy, how many iterations before a reproducing probe produces a number equivalent to one probe per star. Assume original probe produces 1 per month until T is reached. Every probe after that does the same once its arrived. Average travel time between stars assume 50 years.

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