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  2. Square root - Wikipedia

    en.wikipedia.org/wiki/Square_root

    The square root of a positive integer is the product of the roots of its prime factors, because the square root of a product is the product of the square roots of the factors. Since p 2 k = p k , {\textstyle {\sqrt {p^{2k}}}=p^{k},} only roots of those primes having an odd power in the factorization are necessary.

  3. Methods of computing square roots - Wikipedia

    en.wikipedia.org/wiki/Methods_of_computing...

    A method analogous to piece-wise linear approximation but using only arithmetic instead of algebraic equations, uses the multiplication tables in reverse: the square root of a number between 1 and 100 is between 1 and 10, so if we know 25 is a perfect square (5 × 5), and 36 is a perfect square (6 × 6), then the square root of a number greater than or equal to 25 but less than 36, begins with ...

  4. Radical symbol - Wikipedia

    en.wikipedia.org/wiki/Radical_symbol

    In mathematics, the radical symbol, radical sign, root symbol, or surd is a symbol for the square root or higher-order root of a number. The square root of a number x is written as , while the n th root of x is written as . It is also used for other meanings in more advanced mathematics, such as the radical of an ideal. In linguistics, the ...

  5. Square root of 2 - Wikipedia

    en.wikipedia.org/wiki/Square_root_of_2

    The Square Root of Two to 5 million digits by Jerry Bonnell and Robert J. Nemiroff. May, 1994. Square root of 2 is irrational, a collection of proofs; Haran, Brady (27 Jan 2012). Root 2 (video). Numberphile. featuring Grime, James; Bowley, Roger. ⁠ ⁠ Search Engine 2 billion searchable digits of √ 2, π and e

  6. Table of mathematical symbols by introduction date - Wikipedia

    en.wikipedia.org/wiki/Table_of_mathematical...

    radical symbol (for square root) 1637 (with the vinculum above the radicand) René Descartes (La Géométrie) % percent sign: 1650 (approx.) unknown

  7. YouTube Kids - Wikipedia

    en.wikipedia.org/wiki/YouTube_Kids

    YouTube Kids has faced criticism from advocacy groups, particularly the Fairplay Organization, for concerns surrounding the app's use of commercial advertising, as well as algorithmic suggestions of videos that may be inappropriate for the app's target audience, as the app has been associated with a controversy surrounding disturbing or violent ...

  8. Kunerth's algorithm - Wikipedia

    en.wikipedia.org/wiki/Kunerth's_algorithm

    Kunerth's algorithm is an algorithm for computing the modular square root of a given number. [ 1 ] [ 2 ] The algorithm does not require the factorization of the modulus, and uses modular operations that are often easy when the given number is prime.

  9. Fast inverse square root - Wikipedia

    en.wikipedia.org/wiki/Fast_inverse_square_root

    Lighting and reflection calculations, as in the video game OpenArena, use the fast inverse square root code to compute angles of incidence and reflection.. Fast inverse square root, sometimes referred to as Fast InvSqrt() or by the hexadecimal constant 0x5F3759DF, is an algorithm that estimates , the reciprocal (or multiplicative inverse) of the square root of a 32-bit floating-point number in ...

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