AutoCAD Free
Easily and quickly learn and use with an online course and textbook or read a guide book.
Superior visual, drafting, and dimension tools
The popularity of AutoCAD over the years has been driven by the superior visual and drafting tools and increased performance compared to other leading CAD programs.
Fast productivity in drawing and modeling
AutoCAD, as well as its companion product AutoCAD LT, is designed for fast productivity. AutoCAD can generate and edit drawings of any size and complexity in a fraction of the time of many competing software programs. And when you add AutoCAD LT to the mix, you have the fastest productivity suite on the market.
Design-by-construction options
No matter the task, you have the tools to build your CAD drawings exactly as you want them. Automatically create a 3D model, use design-by-construction to build your drawing, or choose from over 50 predefined construction types, AutoCAD delivers innovative and intuitive construction solutions you can implement quickly and easily.
Integrated geometry tools
Make the most of the tools you already use in AutoCAD, such as the line tool, Free Transform, copy and paste, snap-to geometry, the line and spline tools, and the arc and circle tools. In addition, with the new AutoCAD Architecture™ tools, you can construct architectural design and style elements in AutoCAD with robust features and performance.
Simplified user interface and tools
AutoCAD is user-friendly with an intuitive user interface that makes creating and editing a drawing simple. To learn the basics of AutoCAD in just minutes, start with Autodesk's free e-learning courses. After that, discover what AutoCAD LT offers in the world of efficiency.
Predictive design features
AutoCAD LT is the fastest and most powerful companion to AutoCAD. LT is designed to anticipate your needs for efficient and accurate drafting and allows you to complete your projects more quickly and accurately.
AutoCAD is the most widely used CAD program in the world.
History of Autodesk
Autodesk was founded by Paul Riccitiello, Ken Seely, and Ramez Naam in 1982. The first version of Autodesk AutoCAD was released in 1982.
The original goal of Autodesk was to produce desktop version of the AutoCAD software running on
AutoCAD Crack + Registration Code [Latest]
Microsoft Windows has a programming language named AutoLISP. AutoLISP is also known as Microsoft Macro Language or MMCL. AutoLISP is also a scripting language, but is a much older language. AutoLISP is still in use and supported by Microsoft.
ObjectARX was written by a programmer who was dissatisfied with the limitations of the standard programming API for AutoCAD objects, and wanted to create an alternative. ObjectARX is therefore a C++ class library, not just a language, and is therefore a software product, not just a scripting language.
AutoLISP 
AutoLISP is a programming language, so it needs a full programming IDE to be used. As such, there are multiple versions available. AutoLISP is not a true scripting language but a general programming language.
The following features are included in AutoLISP:
 Variables (Declarations, Initialization and Accessing)
 Basic math functions (Add, Subtract, Multiply, Divide, Modulo, Power, Random, Square Root, Factorial, Cube Root, Log, Set, Get, If Then, If Else, If Else If, Do While, For-Next Loop, and While-Loop).
 Looping 
 Input and Output using the Message Box. The Message Box is used to give the user an interactive feedback while doing input and display the result.
 File I/O (Open, Read, Write, Close, Flush)
 String manipulation (string size, text size, copy, set, and compare)
 Memory management
 Serial communication
 Data handling
 Network communication
AutoLISP has a number of syntax extensions which may be used when programming in AutoLISP.
AutoLISP is not an interpreted language. Instead, it is a compiled language. AutoLISP does not require any interpreter, which means it can directly use the compiled and interpreted code.
Visual LISP 
Visual LISP is an extension of AutoLISP that is provided by the AutoCAD and AutoCAD LT development team. It is a Visual Studio package that has a plugin interface. Visual LISP is mostly used for providing extensibility to AutoCAD and AutoCAD LT.
This means that Visual LISP code will not work on any other version of AutoCAD or AutoCAD LT, while AutoLISP code will.
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