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Alternation vs Undefined - What's the difference?

alternation | undefined |

As a noun alternation

is the reciprocal succession of (normally two) things in time or place; the act of following and being followed by turns; alternate succession, performance, or occurrence; as, the alternation of day and night, cold and heat, summer and winter, hope and fear.

As an adjective undefined is

lacking a definition or value.

alternation

English

Noun

(en noun)
  • The reciprocal succession of (normally two) things in time or place; the act of following and being followed by turns; alternate succession, performance, or occurrence; as, the alternation of day and night, cold and heat, summer and winter, hope and fear.
  • The response of the congregation speaking alternately with the minister.
    • (Mason)
  • (linguistics) Ablaut.
  • (logic) The "inclusive or " truth function.
  • (mathematics) A sequence that alternates between positive and negative values. (Sometimes wrongly used to mean a permutation.)
  • (computing) A construct in a regular expression that can match any of several specified subexpressions.

    • undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined