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Functional Programming in Scheme
Expressions, Types, and Functions
Lambda expressions in Scheme

(lambda (formal-parameter-list) expression)

(lambda formal-parameters-name expression)

  • Lambda expression characteristics in Scheme:

    • No type declaration of formal parameter names

    • Call by value parameters

      • In reality passing of references to lists and other structures

    • Positional and required parameters

      • (lambda (x y z) expr) accepts exactly three parameters

    • Required and rest parameters

      • (lambda (x y z . r) expr) accepts three or more parameters

    • Rest parameters only

      • (lambda r expr) accepts an arbitrary number of parameters

Go to exerciseParameter passing in Scheme