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  2. Algebraic expression - Wikipedia

    en.wikipedia.org/wiki/Algebraic_expression

    Since taking the square root is the same as raising to the power ⁠ 1 / 2 ⁠, the following is also an algebraic expression: 1 − x 2 1 + x 2 {\displaystyle {\sqrt {\frac {1-x^{2}}{1+x^{2}}}}} An algebraic equation is an equation involving polynomials , for which algebraic expressions may be solutions .

  3. Zero-product property - Wikipedia

    en.wikipedia.org/wiki/Zero-product_property

    The ring of 2×2 matrices with integer entries does not satisfy the zero-product property: if = and = (), then = () = =, yet neither nor is zero. The ring of all functions f : [ 0 , 1 ] → R {\displaystyle f:[0,1]\to \mathbb {R} } , from the unit interval to the real numbers , has nontrivial zero divisors: there are pairs of functions which ...

  4. Algebraic fraction - Wikipedia

    en.wikipedia.org/wiki/Algebraic_fraction

    In algebra, an algebraic fraction is a fraction whose numerator and denominator are algebraic expressions.Two examples of algebraic fractions are + and +.Algebraic fractions are subject to the same laws as arithmetic fractions.

  5. Asymptote - Wikipedia

    en.wikipedia.org/wiki/Asymptote

    x 2 +2x+3 is a parabolic asymptote to ... but its highest order term gives the linear factor x with multiplicity 4, leading to the unique asymptote x=0. ...

  6. Zero of a function - Wikipedia

    en.wikipedia.org/wiki/Zero_of_a_function

    [2] A root of a polynomial is a zero of the corresponding polynomial function . [ 1 ] The fundamental theorem of algebra shows that any non-zero polynomial has a number of roots at most equal to its degree , and that the number of roots and the degree are equal when one considers the complex roots (or more generally, the roots in an ...

  7. Heegner number - Wikipedia

    en.wikipedia.org/wiki/Heegner_number

    Ramanujan's constant is the transcendental number [5], which is an almost integer: [6] = … +. This number was discovered in 1859 by the mathematician Charles Hermite. [7] In a 1975 April Fool article in Scientific American magazine, [8] "Mathematical Games" columnist Martin Gardner made the hoax claim that the number was in fact an integer, and that the Indian mathematical genius Srinivasa ...

  8. Frobenius normal form - Wikipedia

    en.wikipedia.org/wiki/Frobenius_normal_form

    Given a polynomial P ∈ F[X], there is associated to it a companion matrix C P whose characteristic polynomial and minimal polynomial are both equal to P. Theorem: Let V be a finite-dimensional vector space over a field F, and A a square matrix over F. Then V (viewed as an F[X]-module with the action of X given by A) admits a F[X]-module ...

  9. Binomial series - Wikipedia

    en.wikipedia.org/wiki/Binomial_series

    The case α = 1 gives the series 1 + x + x 2 + x 3 + ..., where the coefficient of each term of the series is simply 1. The case α = 2 gives the series 1 + 2x + 3x 2 + 4x 3 + ..., which has the counting numbers as coefficients. The case α = 3 gives the series 1 + 3x + 6x 2 + 10x 3 + ..., which has the triangle numbers as coefficients.