John D. Cook • 1/1/2026

In-shuffles and out-shuffles

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This technical article delves into perfect card shuffles, specifically in-shuffles and out-shuffles. It provides a generalized Python function for both shuffle types, demonstrates their mathematical properties, and analyzes the number of shuffles required to return a deck to its original order based on modular arithmetic.

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#Python #algorithms #data structures
In-shuffles and out-shuffles

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