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  2. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    An increase of $0.15 on a price of $2.50 is an increase by a fraction of ⁠ 0.15 / 2.50 ⁠ = 0.06. Expressed as a percentage, this is a 6% increase. While many percentage values are between 0 and 100, there is no mathematical restriction and percentages may take on other values. [4]

  3. Plus–minus sign - Wikipedia

    en.wikipedia.org/wiki/Plus–minus_sign

    When the standard presumption that the plus-or-minus signs all take on the same value of +1 or all −1 is not true, then the line of text that immediately follows the equation must contain a brief description of the actual connection, if any, most often of the form "where the ‘±’ signs are independent" or similar.

  4. Word error rate - Wikipedia

    en.wikipedia.org/wiki/Word_error_rate

    The general difficulty of measuring performance lies in the fact that the recognized word sequence can have a different length from the reference word sequence (supposedly the correct one). The WER is derived from the Levenshtein distance, working at the word level instead of the phoneme level. The WER is a valuable tool for comparing different ...

  5. Timeline of historic inventions - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_historic...

    The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...

  6. Russian alphabet - Wikipedia

    en.wikipedia.org/wiki/Russian_alphabet

    X : 0.15% 32 Ё: 0.20% In written Russian, ё is often replaced by е . Q : 0.095% 33 Ъ: 0.02% Ъ used to be a very common letter in the Russian alphabet. This is because before the 1918 reform, any word ending with a non-palatalized consonant was written with a final Ъ — e.g., pre-1918 вотъ vs. post-reform вот.

  7. iPhone - Wikipedia

    en.wikipedia.org/wiki/IPhone

    The iPhone 15, 15 Plus, 15 Pro, and 15 Pro Max were announced on September 12, 2023. Starting with this group of devices, all models switch to using USB-C as their power connector to comply with European Commission regulations, replacing Apple's proprietary Lightning connector after eleven years of use in previous models. [ 54 ]

  8. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_Code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [6] [7] [8] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [9] the pattern of the position detection markers was determined by finding the least-used sequence of ...

  9. Wikipedia:Featured article candidates - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Featured_article...

    Reviewer below suggests adding "alt" text to the images. In the spirit of this article, which includes the Paralympics, I think adding text for visually impaired readers is a great idea. Sources: I have not done any spot checks, but nearly every sentence has a cite, and sources look aesthetically okay.