CK-12 Foundation
Ck 12: Analysis: Sum Notation and Properties of Sigma
[Free Registration/Login may be required to access all resource tools.] An introduction to summation notation and basic operations on sigma.
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Series
Using this tutorial, you'll learn to complete many tasks associated with summation, series, and sequences. Offers definitions and examples of summation notation, series, finite series, and infinite series, as well as several sample...