Comments by "Kim O\x27Brien" (@kimobrien.) on "Power sum MASTER CLASS: How to sum quadrillions of powers ... by hand! (Euler-Maclaurin formula)" video.

  1. The sum of numbers 1+2+3+4...+100. Think of pairs of number that sum to 100, 99+1, 98+2, 97+3 ... 51+49 now you have 49 pairs which is 4900 plus 100 plus 50 which is the mid point adds up to 5050.
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