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Definitions of real number
Definition that contains real number
  • imaginary (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1
  • irrational a real number that cannot be expressed as a rational number
  • interval a set containing all points (or all real numbers) between two given endpoints
  • positional representation system a numeration system in which a real number is represented by an ordered set of characters where the value of a character depends on its position
  • metric space a set of points such that for every pair of points there is a nonnegative real number called their distance that is symmetric and satisfies the triangle inequality
  • complex number (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1
  • indefinite integral the set of functions F(x) + C, where C is any real number, such that F(x) is the integral of f(x)
  • numerical value a real number regardless of its sign
  • real matrix a matrix whose elements are all real numbers
  • complex quantity (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1
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