Sum of Geometric Progression Incremental Calculator

Instructions: Use the incremental calculator to study the individual steps in the process of solving the Sum of the First n Terms of a Geometric Progression formula. Once you understand each step move on to the next calculator and try it yourself.

Sn= a(1-rn)/(1-r)

Enter your own values into the boxes or press new example for computer generated numbers of an example:
a =   n =   r =
To use as a quiz, try to evaluate the expressions yourself and then check your answer.
Calculate:
Step 1: 1-r
Step 2: 1-rn
Step 3: a(1-rn)
Step 4: Sn= a(1-rn)/(1-r)
Definitions
Calculator
Intro Geometric Sum
Chapter 5