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  2. Verhoeff algorithm - Wikipedia

    en.wikipedia.org/wiki/Verhoeff_algorithm

    Verhoeff had the goal of finding a decimal code—one where the check digit is a single decimal digit—which detected all single-digit errors and all transpositions of adjacent digits. At the time, supposed proofs of the nonexistence [ 6 ] of these codes made base-11 codes popular, for example in the ISBN check digit .

  3. Geohash - Wikipedia

    en.wikipedia.org/wiki/Geohash

    For example, in the "1 Geohash digit grid" illustration of 32 rectangles, above, the spatial region of the code e (rectangle of greyish blue circle at position 4,3) is preserved with prefix e in the "2 digit grid" of 1024 rectangles (scale showing em and greyish green to blue circles at grid).

  4. Decimal data type - Wikipedia

    en.wikipedia.org/wiki/Decimal_data_type

    Most decimal fractions (or most fractions in general) cannot be represented exactly as a fraction with a denominator that is a power of two. For example, the simple decimal fraction 0.3 (3 ⁄ 10) might be represented as 5404319552844595 ⁄ 18014398509481984 (0.299999999999999988897769…). This inexactness causes many problems that are ...

  5. Bi-quinary coded decimal - Wikipedia

    en.wikipedia.org/wiki/Bi-quinary_coded_decimal

    Bi-quinary coded decimal is a numeral encoding scheme used in many abacuses and in some early computers, notably the Colossus. [2] The term bi-quinary indicates that the code comprises both a two-state ( bi ) and a five-state ( quin ary) component.

  6. Which other presidents have pardoned relatives? Trump is on ...

    www.aol.com/other-presidents-pardoned-relatives...

    Biden joins a short list of other presidents who have pardoned their family members.

  7. WTO fails on dispute reforms before Trump takes office, US ...

    www.aol.com/news/wto-fails-dispute-reforms-trump...

    World Trade Organization members failed to agree on reforms to revive a broken trade dispute settlement system during the last General Council meeting before U.S. President-elect Donald Trump ...

  8. Latino men voted for Trump in large numbers. Here’s what they ...

    www.aol.com/news/latino-men-voted-trump-large...

    Close to 1 in 10 people in the U.S., about 32 million people, are Hispanic males; the U.S. Latino population is nearly evenly divided between men and women.

  9. Densely packed decimal - Wikipedia

    en.wikipedia.org/wiki/Densely_packed_decimal

    Densely packed decimal (DPD) is an efficient method for binary encoding decimal digits.. The traditional system of binary encoding for decimal digits, known as binary-coded decimal (BCD), uses four bits to encode each digit, resulting in significant wastage of binary data bandwidth (since four bits can store 16 states and are being used to store only 10), even when using packed BCD.