Sigma notation properties & rules

Summation Property 1

Summation property 1

n is a natural number in the sequence.

c is a constant, in case the function is a constant number.

"i" is the index of summation, it is not to be confused with the imaginary unit "i."







Summation property 3

Summation property 3


Summation Property 4

Summation property 4


Summation Rule 1

summation rule 1


Summation Rule 2

summation rule 2

Summation Rule 3

summation rule 3

Posted: April 29th, 2015

Horsnby, Lial, Rockwold (2011) A Graphical Approach to College Algebra. 5th ed. Addison Wesley.

  1. “A sequence is a function that computes an ordered list.” (p.528)
  2. “...the Greek capital letter sigma, is used to indicate a sum.” (p.531)