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  2. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

    www.aol.com/19-dangerous-scam-phone-numbers...

    The good news is that scams operate in many known area codes, so you can avoid being the next victim simply by knowing the list of scammer phone numbers. Trending Now: Pocket an Extra $400 a Month ...

  3. Generator matrix - Wikipedia

    en.wikipedia.org/wiki/Generator_matrix

    A generator matrix for a linear [,,]-code has format , where n is the length of a codeword, k is the number of information bits (the dimension of C as a vector subspace), d is the minimum distance of the code, and q is size of the finite field, that is, the number of symbols in the alphabet (thus, q = 2 indicates a binary code, etc.). The ...

  4. Parity-check matrix - Wikipedia

    en.wikipedia.org/wiki/Parity-check_matrix

    Formally, a parity check matrix H of a linear code C is a generator matrix of the dual code, C ⊥. This means that a codeword c is in C if and only if the matrix-vector product Hc ⊤ = 0 (some authors [1] would write this in an equivalent form, cH ⊤ = 0.) The rows of a parity check matrix are the coefficients of the parity check equations. [2]

  5. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

  6. BBB Scam Alert: Emergency scams instill fear via fake texts ...

    www.aol.com/bbb-scam-alert-emergency-scams...

    Contact the BBB at 800-552-4631 or visit www.bbb.org. This article originally appeared on South Bend Tribune: Consumer Advocate: Tips for spotting an emergency scam. You receive a phone call ...

  7. What You Need to Know About Phone Scams - AOL

    www.aol.com/know-phone-scams-180248742.html

    Always use a strong password with a combination of letters, numbers and special symbols. Register for two-factor authentication if a website lets you do so. The scammer may not attempt to breach ...

  8. Reed–Muller code - Wikipedia

    en.wikipedia.org/wiki/Reed–Muller_code

    Traditional Reed–Muller codes are binary codes, which means that messages and codewords are binary strings. When r and m are integers with 0 ≤ r ≤ m, the Reed–Muller code with parameters r and m is denoted as RM ( r , m ). When asked to encode a message consisting of k bits, where holds, the RM ( r , m) code produces a codeword ...

  9. List of dialling codes in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/List_of_dialling_codes_in...

    This is a list of telephone dialling codes in the United Kingdom, which adopts an open telephone numbering plan for its public switched telephone network. The national telephone numbering plan is maintained by Ofcom , an independent regulator and competition authority for the UK communications industries.