These AutoLISP functions all start with 'F'.
Draws a filled rectangle in the currently active dialog box image tile
Searches the AutoCAD library and trusted paths for the specified file or directory
Searches the AutoCAD trusted locations for the specified file
Returns the conversion of a real number into the nearest smaller integer
Returns the conversion of a number into a real number
Evaluates expressions for all members of a list
Tells the Visual LISP compiler to link and optimize an argument as if it were a built-in function