algebraic number

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Noun[edit]

algebraic number (plural algebraic numbers)

  1. (mathematics) A complex number that is a root of a polynomial equation with rational coefficients.
    The golden ratio (φ) is an algebraic number since it is a solution of the quadratic equation  x^2 + x - 1 = 0 , whose coefficients are integers.
    The square root of any integer 'n' is an algebraic number since it is a solution of the quadratic equation  x^2 - n = 0 , whose coefficients are integers.

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