What is summation notation and how is it used?
Summation notation is a mathematical way to represent the sum of a sequence of numbers. It's often denoted by the symbol Σ.
Can you give me an example of how to use it?
Sure! For instance, Σ from i=1 to n of i means you add all integers from 1 to n.
What does the 'i=1' part mean?
The 'i=1' indicates the starting point of the summation, meaning you begin adding from i=1.
And what about the 'n'?
The 'n' is the upper limit of the summation, so you stop adding when i equals n.
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