Factorial - Scheme Typing CST Test
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Factorial — Scheme Code
Calculates factorial recursively.
(define (factorial n)
(if (<= n 1)
1
(* n (factorial (- n 1)))))
(display (factorial 5)) (newline)Scheme Language Guide
Scheme is a minimalist, functional programming language in the Lisp family, emphasizing recursion, first-class functions, and symbolic computation. It is widely used in education, research, and AI for its simplicity and powerful abstraction capabilities.
Primary Use Cases
- ▸Functional programming education
- ▸Symbolic computation and AI
- ▸DSL (domain-specific language) design
- ▸Prototyping algorithms
- ▸Scripting within research software
- ▸Teaching recursion and higher-order functions
Notable Features
- ▸Minimalist syntax and semantics
- ▸First-class functions and closures
- ▸Tail-call optimization
- ▸Powerful macro system
- ▸Lexical scoping and recursion
Origin & Creator
Scheme was developed in the 1970s by Guy L. Steele and Gerald Jay Sussman at MIT as a simplified, cleaner dialect of Lisp.
Industrial Note
Scheme is primarily used in academia, language design research, AI prototyping, symbolic mathematics, and educational platforms like introductory computer science courses.