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  2. Karatsuba algorithm - Wikipedia

    en.wikipedia.org/wiki/Karatsuba_algorithm

    Since the additions, subtractions, and digit shifts (multiplications by powers of B) in Karatsuba's basic step take time proportional to n, their cost becomes negligible as n increases. More precisely, if T(n) denotes the total number of elementary operations that the algorithm performs when multiplying two n-digit numbers, then

  3. Multiplication algorithm - Wikipedia

    en.wikipedia.org/wiki/Multiplication_algorithm

    In arbitrary-precision arithmetic, it is common to use long multiplication with the base set to 2 w, where w is the number of bits in a word, for multiplying relatively small numbers. To multiply two numbers with n digits using this method, one needs about n 2 operations.

  4. Mental calculation - Wikipedia

    en.wikipedia.org/wiki/Mental_calculation

    Another method is to simply multiply the number by 10, and add the original number to the result. For example: 17 × 11 17 × 10 = 170 170 + 17 = 187 17 × 11 = 187 One last easy way: If one has a two-digit number, take it and add the two numbers together and put that sum in the middle, and one can get the answer.

  5. List of K-pop on the Billboard year-end charts - Wikipedia

    en.wikipedia.org/wiki/List_of_K-pop_on_the...

    Current Billboard logo BTS at their press conference in Seoul, South Korea after winning Top Social Artist at the Billboard Music Awards on May 21, 2017.. List of K-pop on the Billboard year-end charts is a compilation of chart information for K-pop music published by the Billboard charts, and reported on by Billboard K-Town, an online Billboard column.

  6. List of K-pop songs on the World Digital Song Sales chart ...

    en.wikipedia.org/wiki/List_of_K-pop_songs_on_the...

    List of K-pop songs on the World Digital Song Sales chart is a compilation of weekly chart information for K-pop music published on the World Digital Song Sales chart by the Billboard charts, and reported on by Billboard K-Town, an online Billboard column.

  7. List of K-pop on the Billboard charts - Wikipedia

    en.wikipedia.org/wiki/List_of_K-pop_on_the...

    List of K-pop on the Billboard charts is a compilation of chart information for K-pop music published by the Billboard charts, and reported on by Billboard K-Town, an online Billboard column. The charts tabulate the relative weekly popularity of the artists, songs and albums in the United States and globally.

  8. Lattice multiplication - Wikipedia

    en.wikipedia.org/wiki/Lattice_multiplication

    If the sum contains more than one digit, the value of the tens place is carried into the next diagonal (see Step 2). Step 2. Numbers are filled to the left and to the bottom of the grid, and the answer is the numbers read off down (on the left) and across (on the bottom). In the example shown, the result of the multiplication of 58 with 213 is ...

  9. Circle Chart - Wikipedia

    en.wikipedia.org/wiki/Circle_Chart

    The Circle Social Chart is a weekly chart that ranks the top 50 most popular K-pop artists using data from YouTube, TikTok, Mubeat, and Mycelebs. [5] The Gaon Weibo Chart was a weekly chart that ranked the top 10 most popular K-pop groups and the top 30 most popular individual K-pop artists in China using data from Weibo.