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Recursive indexing
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<p>Recursive indexing is an <a href="/facts/Algorithm/fnl5NmRt">algorithm</a> used to represent large numeric values using members of a relatively small <a href="/facts/Set_(mathematics)/BfucfHMq">set</a>. </p><p>Recursive indexing writes the successive differences of the number after extracting the maximum value of the alphabet set from the number, and continuing recursively till the difference falls in the range of the set. </p><p>Recursive indexing with a 2-letter alphabet is called <a href="/facts/Unary_code/yHF7r7pE">unary code</a>. </p>