List Operations II



Inserting new symbols into a list

  • Create a list


    		•  (list a_sym b_sym)
  • Insert at the head


    		•  (cons new_sym a_list)
  • Merge lists


    		•  (append a_list b_list)


    Examples

      (list 'a 'b)

    		 (A B)

      (cons 'a '(b c))

    		 (A B C)

      (append '(a b) '(c d))

    		 (A B C D)

      (list 'a '(b c) 3 '(a 3.9))

      (setq f1 '(a b c))

      (setq f2 '(d e f))

      (cons 3.5 f1)

      !f1

      (append f1 f2)

      !f1

      !f2

      (setq f1 (cons 3.5 f1))

      !f1

      (setq f1 (append f1 f2))

      !f2

      !f1

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