Algebra Etc.

@AlgebraFact

Tweets about algebra, number theory, and miscellaneous math by .

Vrijeme pridruživanja: siječanj 2010.

Tweetovi

Blokirali ste korisnika/cu @AlgebraFact

Jeste li sigurni da želite vidjeti te tweetove? Time nećete deblokirati korisnika/cu @AlgebraFact

  1. prije 16 sati

    If R is a unique factorization domain, so is R[x], the ring of polynomials over R.

    Poništi
  2. prije 21 sat
    Poništi
  3. 4. velj
    Poništi
  4. 4. velj

    If p and q are distinct primes, every abelian group of order pq is isomorphic to the integers mod pq.

    Poništi
  5. 4. velj

    The smallest prime > 11 whose digits are all 1s is 1,111,111,111,111,111,111.

    Poništi
  6. 4. velj

    Reminds me of some ceremonial headdress, like Queen Amadala in Star Wars.

    Prikaži ovu nit
    Poništi
  7. 4. velj

    This weekend's thread about odd numbers in Pascal's triangle, edited into a blog post:

    Poništi
  8. 4. velj
    Prikaži ovu nit
    Poništi
  9. 3. velj

    The only factorial that is also a square is 1.

    Poništi
  10. 3. velj

    A non-empty set has as many subsets with an even number of elements as it has subsets with an odd number of elements.

    Poništi
  11. 3. velj

    'All universal objects are initial objects somewhere.' -- Eugenia Cheng

    Poništi
  12. 2. velj

    Binet's formula for Fibonacci numbers

    Poništi
  13. 2. velj

    A palindrome prime with 15,601 digits: 1808010808 ... 8080108081

    Poništi
  14. 2. velj

    Every positive integer can be written as the sum of three palindromes.

    Poništi
  15. 2. velj

    Happy palindrome day: 2020 02 02

    Poništi
  16. 2. velj

    Corollary 2: The entries in row 2^n - 1 of Pascal's triangle are all odd.

    Prikaži ovu nit
    Poništi
  17. 2. velj

    Corollary 1: The number of odd numbers in the nth row of Pascal's triangle is always a power of 2.

    Prikaži ovu nit
    Poništi
  18. 2. velj

    The seventh row of Pascal's triangle is 1 7 21 35 35 21 7 1 and all 8 of these numbers are odd. The binary representation of 7 is 111, so b = 3, and 2^3 = 8.

    Prikaži ovu nit
    Poništi
  19. 2. velj

    For example, the 6th row of Pascal's triangle is 1 6 15 20 15 6 1 Four of these numbers are odd. The binary representation of 6 is 110, so b = 2, and 2^2 = 4.

    Prikaži ovu nit
    Poništi
  20. 2. velj

    The number of odd integers in the nth row of Pascal's triangle equals 2^b where b is the number of 1's in the binary representation of n.

    Prikaži ovu nit
    Poništi

Čini se da učitavanje traje već neko vrijeme.

Twitter je možda preopterećen ili ima kratkotrajnih poteškoća u radu. Pokušajte ponovno ili potražite dodatne informacije u odjeljku Status Twittera.

    Možda bi vam se svidjelo i ovo:

    ·