Enjoy Lisp! <<<Example>>> (car '(a b c)) (cons 1 (cons 2 (cons 3 ()))) (defun fact (n) (if (eq n 0) 1 (* n (fact (- n 1))))) (defun fib (n) (if (eq n 1) 1 (if (eq n 0) 1 (+ (fib(- n 1)) (fib(- n 2)))))) (defun gen (n) (lambda (m) (setq n (+ n m)))) <<<Functions>>> car cdr cons eq (this can compare numbers) atom +, -, *, /, mod (they accept exact two numbers) <<<Special Forms>>> quote if lambda defun setq (this can define a global variable) <<<Features>>> GC: This implementation has stop-the-world mark sweep GC. Numeric tower: This implementation supports only non-negative integer. Tail recursion optimization: NOT supported. Reader: This implementation doesn't accept a dotted list like (1 . 2). Please use cons instead.