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Another Neat Piece Of Algebra - Series Summation
Here's another neat piece of algebra: A technique for summing series. You know what b - a + c - b + d - c is. Right? Suppose I were to write the same sum as: (b - a) + (c - b) + (d - c) The answer is still d - a. Right? Now, suppose I re-label with s 0 = a, s 1 = b, s 2 = c and s 3 = d. We end up with: (s 1 - s 0 ) + (s 2 - s 1 ) + (s 3 - s 2 ) This is actually pretty scalable terminology as you... [More]
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