# July 2017 archive

Jul 17 2017

## BLADE RUNNER 2049 – Trailer 2

Jul 16 2017

## The Sum of an Arithmetic Series

An arithmetic sequence of numbers, sometimes alternatively called an arithmetic progression, is a sequence of numbers in which the difference between all pairs of consecutive numbers is constant. A very simple arithmetic sequence consists of the natural numbers: 1, 2, 3, 4, … where the difference between any number and the number before it is …