What's Next 22. Your Money 25 Inductive Math. The small or lower case Greek letter sigma is written s . You can clearly see which choice gives the least amount of writing.
More examples follow.
In this sum, giving the summation notation first seemed simpler than trying to describe the sum and its terms with words only. All trademarks and copyrights on this page are owned by their respective owners. Copyright to comments contributions are owned by the Poster. The Rest 1995-2000 by site author Alan Selby.