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  2. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    In particular, in these two identities an asymmetry appears that is not seen in the case of sums of finitely many angles: in each product, there are only finitely many sine factors but there are cofinitely many cosine factors. Terms with infinitely many sine factors would necessarily be equal to zero. When only finitely many of the angles are ...

  3. List of open-source software for mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_open-source...

    This free software had an earlier incarnation, Macsyma. Developed by Massachusetts Institute of Technology in the 1960s, it was maintained by William Schelter from 1982 to 2001. In 1998, Schelter obtained permission to release Maxima as open-source software under the GNU General Public license and the source code was released later that year ...

  4. Hadamard factorization theorem - Wikipedia

    en.wikipedia.org/wiki/Hadamard_factorization_theorem

    Otherwise, has infinitely many roots. This is the tricky part and requires splitting into two cases. This is the tricky part and requires splitting into two cases. First show that g ≤ floor ( ρ ) {\displaystyle g\leq {\text{floor}}(\rho )} , then show that ρ ≤ g + 1 {\displaystyle \rho \leq g+1} .

  5. Euler's formula - Wikipedia

    en.wikipedia.org/wiki/Euler's_formula

    Many texts write φ = tan −1 ⁠ y / x ⁠ instead of φ = atan2(y, x), but the first equation needs adjustment when x ≤ 0. This is because for any real x and y , not both zero, the angles of the vectors ( x , y ) and (− x , − y ) differ by π radians, but have the identical value of tan φ = ⁠ y / x ⁠ .

  6. Fermat number - Wikipedia

    en.wikipedia.org/wiki/Fermat_number

    Are there infinitely many composite Fermat numbers? Does a Fermat number exist that is not square-free ? As of 2024 [update] , it is known that F n is composite for 5 ≤ n ≤ 32 , although of these, complete factorizations of F n are known only for 0 ≤ n ≤ 11 , and there are no known prime factors for n = 20 and n = 24 . [ 5 ]

  7. Euclid's theorem - Wikipedia

    en.wikipedia.org/wiki/Euclid's_theorem

    If q is not prime, then some prime factor p divides q. If this factor p were in our list, then it would also divide P (since P is the product of every number in the list). If p divides P and q, then p must also divide the difference [3] of the two numbers, which is (P + 1) − P or just 1.

  8. Create and manage 3rd-party app passwords - AOL Help

    help.aol.com/articles/Create-and-manage-app-password

    To access your AOL Mail account on these apps, you'll need to generate and use an app password. An app password is a randomly generated code that gives a non-AOL app permission to access your AOL account. You'll only need to provide this code once to sign in to your 3rd party email app.

  9. Factorization of polynomials over finite fields - Wikipedia

    en.wikipedia.org/wiki/Factorization_of...

    Algorithm: SFF (Square-Free Factorization) Input: A monic polynomial f in F q [x] where q = p m Output: Square-free factorization of f R ← 1 # Make w be the product (without multiplicity) of all factors of f that have # multiplicity not divisible by p c ← gcd(f, f′) w ← f/c # Step 1: Identify all factors in w i ← 1 while w ≠ 1 do y ...