Alphabetic List of Functions

This alphabetic list is one gateway to the function definitions.  The other gateway is the "Catalog of function definitions."

174 AutoLISP functions are listed below.  If you know the name of a particular function, you can find it here and look up its definition and syntax by clicking on the function name.
 

+  (add) -  (subtract) *  (multiply) /  (divide) =  (equal) /=  (unequal) <  (less than) <=  (less than or equal) >  (greater than) >=  (greater than or equal) ~  (bitwise NOT) 1+  (increment) 1-  (decrement) abs acad_colordlg acad_strlsort alert and angle angtof angtos append apply ascii assoc atan atof atoi atom atoms-family autoload boole boundp caddr cadr car

cdr chr close command cond cons cos cvport cvunit defun distance distof entdel entget entlast entmake entmod entnext entsel entupd eq equal *error* eval exit exp expt findfile fix float foreach gcd getangle getcorner getdist getenv

getfiled getint getkword getorient getpoint getreal getstring getvar graphscr grdraw grread grtext grvecs handent help if initget inters itoa lambda last length list listp load log logand logior lsh mapcar max mem member menucmd min minusp

nentsel nentselp not nth null numberp open or osnap polar prin1 princ print progn prompt quit quote read read-char read-line redraw rem repeat reverse rtos set setfunhelp setq setvar setview sin snvalid sqrt ssadd ssdel ssget

ssgetfirst sslength ssmemb ssname ssnamex sssetfirst startapp strcase strcat strlen subst substr tblnext tblobjname tblsearch terpri textbox textpage textscr trace trans type untrace ver vports wcmatch while write-char write-line zerop

In the function definitions, the various parts of an AutoLISP expression are identified as follows:

     ( function   first-argument   second-argument   third-argument   etc.)