Supported Platforms: Windows and Mac OS
A list with three or more elements.
Type: Integer, Real, String, List, T or nil
The third element in list; otherwise nil, if the list is empty or contains fewer than three elements.
In AutoLISP, caddr is frequently used to obtain the Z coordinate of a 3D point (the third element of a list of three reals).
(setq pt3 '(5.25 1.0 3.0))
(5.25 1.0 3.0)
(caddr '(5.25 1.0))