Real number system

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Created by
kYzsha Ferris

Cards (19)

  • Number
    A mathematical quantity or value
  • Numeral
    A symbol used to express a number
  • The number is a concept, and the numeral is the way we write it
  • Number "four"
    • 4 in Arabic numerals
    • IV in Roman numerals
  • Types of numbers
    • Natural/counting numbers
    • Whole numbers
    • Integers
    • Rational numbers
    • Irrational numbers
  • Natural/counting numbers
    The set of numbers used for counting
  • Whole numbers
    The set of counting numbers including zero
  • Integers
    The set of whole numbers including negative numbers
  • Rational numbers
    Numbers that can be expressed as a fraction
  • Irrational numbers
    Numbers that cannot be written as a fraction
  • All counting numbers are positive numbers
  • Symbol for natural numbers
    N
  • Symbol for whole numbers
    W
  • Symbol for integers
    Z
  • Symbol for rational numbers
    Q
  • Symbol for irrational numbers
    Denoted by π
  • The union of the set of rational numbers, Q, and the set of irrational numbers, Q is the set of real numbers
  • Symbol for real numbers
    R
  • R=QUQ