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  2. 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.).

  3. 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]

  4. Coupon collector's problem - Wikipedia

    en.wikipedia.org/wiki/Coupon_collector's_problem

    In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: if each box of a given product (e.g., breakfast cereals) contains a coupon, and there are n different types of coupons, what is the probability that more than t boxes need to be bought ...

  5. Missing dollar riddle - Wikipedia

    en.wikipedia.org/wiki/Missing_dollar_riddle

    The solution appears very obvious if the owner withdraws every day only $10 from $50. To add up 40 + 30 + 20 + 10 using the same pattern from above would be too obviously wrong (result would be $100). The answer to the question, "Where did the extra dollar come from?” can be found from consecutively adding the bank rest from three different days.

  6. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    TCP: Allow traffic to all destinations on ports: 28910, 29900, 29901, 29920, 80, and 443. UDP: Allow all traffic to all destinations. (Necessary for peer-to-peer connections and game play). ... ^ "Ports Used for Call of Duty Games". Activision Support.

  7. Punkie Johnson Leaving ‘Saturday Night Live’: ‘My Time Has ...

    www.aol.com/punkie-johnson-leaving-saturday...

    Punkie Johnson is leaving “Saturday Night Live” after four seasons. Johnson apparently broke the news to an audience at a stand-up comedy show at Brooklyn’s Union Hall on July 31, at which ...

  8. List of named matrices - Wikipedia

    en.wikipedia.org/wiki/List_of_named_matrices

    A matrix whose entries are generated by the determinants of all minors of a matrix. Copositive matrix. A square matrix A with real coefficients, such that. f ( x ) = x T A x {\displaystyle f (x)=x^ {T}Ax} is nonnegative for every nonnegative vector x. Diagonally dominant matrix. A matrix whose entries satisfy.

  9. Shop the deals only Amazon Prime members can score - AOL

    www.aol.com/lifestyle/shop-the-deals-only-amazon...

    6-Pack Plug-in Nightlights. $8 $10. Save $2 with Prime. If your house is too dark at night, help is here. Automatic sensors turn these LED cuties on when there's no more light. They're tiny but ...