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- Mar 29th 2010, 08:00 PMtbenne3Calculate M4
- Mar 29th 2010, 08:10 PMmr fantastic
- Mar 29th 2010, 08:15 PMtbenne3
- Mar 29th 2010, 08:16 PMmr fantastic
- Mar 29th 2010, 08:22 PMtbenne3
- Mar 29th 2010, 08:44 PMdrumist
In that example, they are dividing the interval [0,1] into 4 equal sub-intervals, like so:

[0,0.25] [0.25,0.5] [0.5,0.75] and [0.75,1]

Next, you need to find the midpoint of each interval, because this is what you will use to plug into f(x) for each sub-interval.

Midpoint of [0,0.25] is 0.125

Midpoint of [0.25,0.5] is 0.375

etc.