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Irrational vs Complex - What's the difference?

irrational | complex |

As adjectives the difference between irrational and complex

is that irrational is not rational; unfounded or nonsensical while complex is made up of multiple parts; composite; not simple.

As nouns the difference between irrational and complex

is that irrational is a real number that can not be expressed as the quotient of two integers, an irrational number while complex is a problem.

As a verb complex is

to form a complex with another substance.

irrational

English

Adjective

(en adjective)
  • Not rational; unfounded or nonsensical.
    • an irrational decision
  • * July 18 2012 , Scott Tobias, AV Club The Dark Knight Rises [http://www.avclub.com/articles/the-dark-knight-rises-review-batman,82624/]
    • Where the Joker preys on our fears of random, irrational acts of terror, Bane has an all-consuming, dictatorial agenda that’s more stable and permanent, a New World Order that’s been planned out with the precision of a military coup.
  • (mathematics, arithmetic, number theory, not comparable) Of a real number, that cannot be written as the ratio of two integers.
    • The number π is irrational .

    Antonyms

    * (mathematics) rational

    Hyponyms

    * (mathematics) transcendental

    Derived terms

    * irrational number * irrationality * irrationalize * irrationalization

    Noun

    (en noun)
  • A real number that can not be expressed as the quotient of two integers, an irrational number.
  • * 1946 , (Bertrand Russell), History of Western Philosophy , I.24:
    • The square root of 2, which was the first irrational to be discovered, was known to the early Pythagoreans, and ingenious methods of approximating to its value were discovered.

    complex

    English

    (wikipedia complex)

    Adjective

    (complex number) (en adjective)
  • Made up of multiple parts; composite; not simple.
    • a complex''' being; a '''complex idea
  • * John Locke
    • Ideas thus made up of several simple ones put together, I call complex ; such as beauty, gratitude, a man, an army, the universe.
  • Not simple, easy, or straightforward; complicated.
  • * Whewell
    • When the actual motions of the heavens are calculated in the best possible way, the process is difficult and complex .
  • (mathematics) Of a number, of the form a + bi'', where ''a'' and ''b'' are real numbers and ''i is a square root of −1.
    • complex function
  • (geometry) A curve, polygon or other figure that crosses or intersects itself.

    • Synonyms

    * (not simple) complicated, detailed, difficult, hard, intricate, involved, tough

    Antonyms

    * (not simple) basic, easy, simple, straightforward

    Derived terms

    * complexity * complexness

    Related terms

    * complexion * (mathematics) symplectic

    Noun

  • A problem.
  • A collection of buildings with a common purpose, such as a university or military base.
  • Assemblage of related things; collection.
  • * South
    • This parable of the wedding supper comprehends in it the whole complex of all the blessings and privileges exhibited by the gospel.
  • A psychological dislike or fear of a particular thing.
  • An organized cluster of thunderstorms.
  • (chemistry) A structure consisting of a central atom or molecule weakly connected to surrounding atoms or molecules.
  • * {{quote-magazine, year=2013, month=September-October, author= Katie L. Burke
    • , magazine=(American Scientist), title= In the News , passage=Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis:

    Derived terms

    * military-entertainment complex * military-industrial complex * Oedipus complex * prison-industrial complex * vitamin B complex * protein complex * chelate complex

    Verb

    (es)
  • (chemistry) To form a complex with another substance

    • External links

    * * English heteronyms ----