1.5 KiB
1.5 KiB
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| Sigma Notation |
Sigma Notation
Sigma Notation is a mathematical shorthand for representing large sums.
Sigma Notation is as follows
where n is the lower limit k is the upper limit and an is the function you are summating
To evaluate a sum in Sigma notation, you first plug in all integers from the n to k to an, then add up all the results.
For example :
First, you plug all integers from n to k into an :
Second, you evaluate all instances of an :
Last, you add all the results up, leaving you with the value of the sigma :
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