different between caddr vs cdr

caddr

English

Etymology

Contraction of car of the cdr of the cdr.

Pronunciation

  • IPA(key): /?k??d?d?/, /?k?d?d?/

Noun

caddr (plural caddrs)

  1. (programming) Car of the cdr of the cdr in LISP. The third element in a list.
    • 2000, Matt Kaufmann, Panagiotis Manolios, and J Strother Moore, Computer-aided reasoning: an approach
      If we let x denote the tree (1 2 3), then the car of x is 1, the cdr of x is (2 3), the cadr of x is 2, the caddr of x is 3, and the cdddr of x is nil.

caddr From the web:

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cdr

English

Alternative forms

  • CDR

Etymology

Acronym of contents of the decrement part of register number. Note that it was based on original hardware and has no meaning today.

Pronunciation

  • IPA(key): /?ku.d?/, /?ku.d?/
  • IPA(key): /?k?d.?/, /?k?d.?/

Noun

cdr (plural cdrs)

  1. (programming) The second part of a cons in LISP. The rest of a list when the first element is removed.
    Antonym: car

Derived terms

  • cadr
  • caddr
  • cddr

Further reading

  • CAR and CDR on Wikipedia.Wikipedia

Anagrams

  • CRD, DRC, RCD, RDC

cdr From the web:

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