CAD Forum - tips, tricks, discussion and utilities for AutoCAD, Inventor, Revit and other Autodesk products []
CZ | EN | DE
Login or
  Visitors: 9301

CAD tip CAD tip # 6103:

Question CAD 
 %  platform  category 
Q - question

Arithmetic expressions in AutoCAD dynamic input fields.

A - answer Using AutoLISP, you can enter values computed as mathematical expressions - at almost any prompt in AutoCAD, including the fields of dynamic input interface.

E.g. when specifying a line length (direction given by cursor rubberline) you can enter not only a number (distance) but also a LISP function (equation) enclosed in round brackets - e.g.:

(- 264 39)
(* 6 7)
(/ 22.0 7.0)
(+ 1 2 3 4 5)
Please note that the LISP notation is different from common arithmetics - first comes the function, then its operands.
100% *  CAD 
22.4.2008    9685×  
Prices - CAD eShop:
applies to: AutoCAD ·

See also:
Tip 13583:Evaluate math expressions in AutoCAD DWG texts.
Tip 13426:Use of alternative units for arithmetic in dimensions (without square brackets).
Tip 12777:Arithmetic and trigonometric functions available in Revit expressions.
Tip 12624:How to enter dimensions in Revit using other units?
Tip 12002:Arithmetic expressions with measured distances in AutoCAD.

Back   All CAD Tips

Have we helped you? If you want to support the CAD Forum web service, consider buying one of our CAD applications, or our custom software development offerings, or donating via PayPal (see above). You may also add a link to your web - like this "fan" link: CAD Forum - tips, utilities, blocks for Autodesk products
CAD:    OS:    Categ: 
Text:  FAQ glossary   

Add .CIT raster format support to AutoCAD and Map and Civil 3D
CITin More info

Please use these tips at your own risk.
Arkance Systems is not responsible for possible problems that may occur as a result of using any of these tips.