Learn AutoLISP and Increase Your Productivity! Increased productivity, isn’t that what everyone wants? Although this should be one benefit of using a CAD program such as AutoCAD, however, in many cases, this benefit is not automatically derived by using the program out of the box. There are many ways to increase your productivity when using AutoCAD, and writing...

Functions as listed in the “AutoLISP Reference” Manual, are of two types: Internal and User Defined Internal, or predefined functions, are those that are resident within AutoLISP such as the ones listed in the “Reference” Manual. Many common Math functions that you may already be familiar with are included in these functions: (+) add (-) subtract (*)...

Functions LISP is an acronym for LISt Processing and is a programming language that consists of only three elements: atoms, lists, and functions. An atom is the basic unit of any LISP program, simple defined as a single computer word or element. You could say that atoms represent the basic building elements of data in LISP. A Function can be defined as a LISP...