# Cryptograms

## Cryptograms Topics

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### Printer's errors

Typesetting "errors" in which exponents or multiplication signs are omitted but the resulting expression is equivalent to the original one. Examples include(1)(2)(3)and(4)where a whole number followed by a fraction is interpreted as a mixed fraction (e.g., ). D. Wilson computed all possible errors obtained by dropping exponents in a product for bases 2 to 15 and numbers :(5)(6)(7)Wilson also gave the numbers and , where the two digit base- satisfies(8)and for which there exist an infinite number of examples.