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Sigma Notation
Sigma Notation is a notation used to abbreviate long
summations of a given expression.
ex.
The Greek letter sigma ( S
) is used to indicate that a given expression is a sum. The
variable i is used to indicate the interval in which the
summation will start and when it will it end. The term i2
+ 1 is a dummy variable were i changes for each term of the
summation.
Sum of the first n integers:
for n is a positive integer.
Sum of the first n powers: for n is a positive
integer.
Properties Of Sums:
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