Presentation topic : LISP Amir Shahzad MCS 3 MCC

LISP (List processing )  The use of parentheses is Lisp's difference from other programming language families. As a result, students have long given Lisp nicknames such as Lost In Stupid Parentheses

SBCL  Steel Bank Common Lisp is a free Common Lisp implementation that features a high performance native compiler, Unicode support and threading.

LISP  Lisp is the second-oldest high-level programming language in widespread use today.  Lisp was originally created as a practical mathematical notation for computer programs,  Lisp pioneered many ideas in computer science, including tree data structures, higher-order functions, recursion, and the self-hosting compiler

Connection to artificial intelligence  Lisp was closely connected with the artificial intelligence research community, especially on PDP (product development process ) systems. Lisp was used as the implementation of the programming language Micro Planner which was used in the famous AI system SHRDLU.

Advantages of LISP  Common Lisp is  a general-purpose programming language and an AI language  interactive  Common Lisp programs are  easy to test (interactive)  easy to maintain (depending on programming style)  portable across hardware/OS platforms and implementations (there is a standard for the language and the library functions)

 Common Lisp provides  clear syntax, carefully designed semantics  several data types: numbers, strings, arrays, lists, characters, symbols, structures, streams etc.  many generic functions: 88 arithmetic functions for all kinds of numbers (integers, ratios, floating point numbers, complex numbers), automatic memory management (garbage collection)  packaging of programs into modules  macros: every programmer can make his own language extensions

Operators  Arithmetic operators are treated similarly. The expression  evaluates to 10. The equivalent under infix notation would beinfix notation ( ) " "