A program that will identify and then solve Arithmetic and Geometric Sequences and Series
after the user inputs the first three terms, a desired unknown term to be calculated,
and a starting and ending term for finding the sum of the related series.

The Arithmetic Sequence and Series Formulas used are:

The Geometric Sequence and Series Formulas used are:

This program is written in JavaScript.

By Mr. C. July 18, 2015

The sequence NaN, NaN, NaN, is NOT arithmetic.

The sequence NaN, NaN, NaN, is NOT geometric.

Edit in JS Bin