feilong wrote:
> 
> Hallo,
> Ich have tried to write the definition of  mapcar, but  I  don't
>  succeed,  because  funktion  mapcar  can  take  any  numbers of
>  arguments and the recursion procedure is very comlicated. For  example :
>  >(mapcar #'+ '(1 2 3))
>  >6
>  >(mapcar #'+  '(1 2 3)  '(24 3)  '(89 43))
>  >(114 48)


(mapcar #'+ '(1 2 3)) ==> (1 2 3), not 6

See the CL Hyperspec for a thorough definition of mapcar.
http://www.franz.com/support/documentation/6.2/ansicl/dictentr/mapcmapc.htm

	Paul