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The document explores the use and the importance of algorithms in coding.
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CHAPTER 4 Divide-and-conquer
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design and analysis of algorithm
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Basic Formula Evaluation.Let us take an instance of a sequence {ai}={ai, a2, a3,……}; to find the sum of these digits, we
often add all or some of these digits. We always write all the letters that is.
a1 + a2 + a3 + · · · + ai + · · · . To avoid this, we use the sigma notation, Σ, to
represent the sum of all these terms:
Definition:
Let us Consider an example to depict the above:
This points that ai = i, and we will with i = 1, so a1 = 1,
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