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Describe a geometric connection with a generalization of the decimal expansion of a number

We may generalize the decimal expansion of a number by replacing the integer 10 with any integer b> 1. If x > 0, let a_0 denote the greatest integer greater than x. Assuming the integers a_0, a_1, \ldots, a_{n-1} have been defined, let a, denote the largest integer such that

    \[ \sum_{k=0}^n \frac{a_k}{b^k} \leq x. \]

Describe a geometric method for obtaining a_0, a_1, a_2, \ldots.


Instead of dividing the real line into segments with 10 subintervals and taking the greatest integer number of intervals, we divide the line into b subintervals.

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