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  2. Relational operator - Wikipedia

    en.wikipedia.org/wiki/Relational_operator

    Other conventions are less common: Common Lisp and Macsyma/Maxima use Basic-like operators for numerical values, except for inequality, which is /= in Common Lisp and # in Macsyma/Maxima. Common Lisp has multiple other sets of equality and relational operators serving different purposes, including eq, eql, equal, equalp, and string=. [6]

  3. Lisp (programming language) - Wikipedia

    en.wikipedia.org/wiki/Lisp_(programming_language)

    Lisp (historically LISP, an abbreviation of "list processing") is a family of programming languages with a long history and a distinctive, fully parenthesized prefix notation. [3] Originally specified in the late 1950s, it is the second-oldest high-level programming language still in common use, after Fortran.

  4. Lispkit Lisp - Wikipedia

    en.wikipedia.org/wiki/Lispkit_Lisp

    Lispkit Lisp is a lexically scoped, purely functional subset of Lisp (Pure Lisp) developed as a testbed for functional programming concepts. It was first used for early experimentation with lazy evaluation .

  5. Common Lisp - Wikipedia

    en.wikipedia.org/wiki/Common_Lisp

    Many Common Lisp types have a corresponding class. There is more potential use of CLOS for Common Lisp. The specification does not say whether conditions are implemented with CLOS. Pathnames and streams could be implemented with CLOS. These further usage possibilities of CLOS for ANSI Common Lisp are not part of the standard.

  6. Anaphoric macro - Wikipedia

    en.wikipedia.org/wiki/Anaphoric_macro

    The loop macro in ANSI Common Lisp is anaphoric in binding, where the it expression refers to the result of the test expression in a clause. [2] [3]Here is an example that sums the value of non-nil elements, where it refers to the values of elements that do not equal nil:

  7. Association list - Wikipedia

    en.wikipedia.org/wiki/Association_list

    In the early development of Lisp, association lists were used to resolve references to free variables in procedures. [ 5 ] [ 6 ] In this application, it is convenient to augment association lists with an additional operation, that reverses the addition of a key–value pair without scanning the list for other copies of the same key.

  8. Sean Astin was reluctant to do a lisp for “50 First Dates ...

    www.aol.com/lifestyle/sean-astin-reluctant-lisp...

    The actor reunites with his onscreen sister Drew Barrymore on her eponymous talk show. Sean Astin took a trip down memory lane with 50 First Dates costar Drew Barrymore on the latest episode of ...

  9. Less-than sign - Wikipedia

    en.wikipedia.org/wiki/Less-than_sign

    The less-than sign with the equals sign, <=, may be used for an approximation of the less-than-or-equal-to sign, ≤. ASCII does not have a less-than-or-equal-to sign, but Unicode defines it at code point U+2264. In BASIC, Lisp-family languages, and C-family languages (including Java and C++), operator <= means "less than