CADDIT CAD CAM CNC Software - download AutoCAD compatible design software progeCAD Alibre T-FLEX and more
CADDIT Website Knowledge Base Search:

progeCAD Help

Welcome to progeCAD
Working with progeCAD
Command Reference
CAD System Variables
Programming progeCAD
Full Index (caution - 400kb)

Further Links:

Download progeCAD
Register progeCAD


T-FLEX PLM tutorial (PDF)
progeCAD IntelliCAD and AutoCAD training 
CATIA 2D 3D design tutorial
Alibre CAD/CAM basic tutorial


Educational CAD Software Solutions
Python scripting for DOS and Windows
Other free software downloads
CADDIT CAD CAM Forum Australia

(eq statement1 statement2)

Determine whether two expressions are bound to the same symbol.

This function determines whether two expressions are bound to the same symbol. If so, eq returns T; if not, eq returns nil.


Code Comments
(setq s1 '(1 2 3)) Create symbol s1.
(setq s2 '(1 2 3)) Create symbol s2.
(setq s3 s2) Bind s2 to s3.
(eq s1 s3) nil because s1 and s3 are not the same list.
(eq s3 s2) T because s3 and s2 are the same list.

NOTE The eq function is not the same as theeq function returns T when two expressions are bound to the same symbol.

(boundp item)

(setq symbol1 statement1 [symbol2 statement2] ...)

LISP Compatibility

Programming Overview of LISP (LISt Processing) Language

CADDIT® is a registered trademark in Australia. All Rights Reserved. Comments concerning the content of this site should be addressed to our webmaster. progeCAD is a trademark of ProgeCAD srl. Autodesk® and AutoCAD® are both registered trademarks or trademarks of a third party, and used only for comparison purposes. All other trademarks, trade names or company names referenced herein are used for identification only and are the property of their respective owners. Legal and Terms of Use. Google. Find us on Google+.