enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Triangular number - Wikipedia

    en.wikipedia.org/wiki/Triangular_number

    The final digit of a triangular number is 0, 1, 3, 5, 6, or 8, and thus such numbers never end in 2, 4, 7, or 9. A final 3 must be preceded by a 0 or 5; a final 8 must be preceded by a 2 or 7. In base 10, the digital root of a nonzero triangular number is always 1, 3, 6, or 9. Hence, every triangular number is either divisible by three or has a ...

  3. Letter frequency - Wikipedia

    en.wikipedia.org/wiki/Letter_frequency

    The California Job Case was a compartmentalized box for printing in the 19th century, sizes corresponding to the commonality of letters. The frequency of letters in text has been studied for use in cryptanalysis, and frequency analysis in particular, dating back to the Arab mathematician al-Kindi (c. AD 801–873 ), who formally developed the method (the ciphers breakable by this technique go ...

  4. Root Meaning in English Origin language Etymology (root origin) English examples ob-, o-, oc-, of-, og-, op-, os-[1]against: Latin: ob: obduracy, obdurate, obduration ...

  5. Alphabetic numeral system - Wikipedia

    en.wikipedia.org/wiki/Alphabetic_numeral_system

    The Greek alphabet has 24 letters; three additional letters had to be incorporated in order to reach 900. Unlike the Greek, the Hebrew alphabet's 22 letters allowed for numerical expression up to 400. The Arabic abjad's 28 consonant signs could represent numbers up to 1000. Ancient Aramaic alphabets had enough letters to reach up to 9000.

  6. Alphabet - Wikipedia

    en.wikipedia.org/wiki/Alphabet

    In German, words starting with sch-(which spells the German phoneme /ʃ/) are inserted between words with initial sca-and sci-(all incidentally loanwords) instead of appearing after the initial sz, as though it were a single letter, which contrasts several languages such as Albanian, in which dh-, ë-, gj-, ll-, rr-, th-, xh-, and zh-, which ...

  7. Alphabetical order - Wikipedia

    en.wikipedia.org/wiki/Alphabetical_order

    For example, in French, the following four words would be sorted this way: cote < côte < coté < côté. The letter e is ordered as e é è ê ë (œ considered as oe), same thing for o as ô ö. In German letters with umlaut (Ä, Ö, Ü) are treated generally just like their non-umlauted versions; ß is always sorted as ss. This makes the ...

  8. English alphabet - Wikipedia

    en.wikipedia.org/wiki/English_alphabet

    This is an accepted version of this page This is the latest accepted revision, reviewed on 21 February 2025. Latin-script alphabet consisting of 26 letters English alphabet An English-language pangram written with the FF Dax Regular typeface Script type Alphabet Time period c. 16th century – present Languages English Related scripts Parent systems (Proto-writing) Egyptian hieroglyphs Proto ...

  9. List of diseases (O) - Wikipedia

    en.wikipedia.org/wiki/List_of_diseases_(O)

    This is a list of diseases starting with the letter "O". O–Ob. O Doherty syndrome; O Donnell Pappas syndrome ... Oculocutaneous albinism type 3; Oculocutaneous ...