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CAD tip CAD tip # 7878:

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Q - question

How to input a real fraction in AutoCAD?

A - answer I am trying to input the offset distance as 17.3 and the drawing is in 1:2 scale, so I entered "17.3/2", but it doesn't work.

On AutoCAD prompts, you can directly input arithmetic expressions with integers (e.g. 17/3), but for operations on real numbers you need to use the embedded CALculator:

Offset distance: 'cal
>>>> Expression: 17.3/2
Continuing the OFFSET command.

Another option is to use the LISP evaluator:

Offset distance: (/ 17.3 2)

And another option is to use the QuickCalc - Ctrl+8.

100% *  CAD 
30.3.2011    5925x  
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applies to: AutoCAD ·

See also:
Tip 10231:How to draw spiral in AutoCAD LT?
Tip 9630:Inventor trick - conditional parameters (without iLogic)
Tip 9248:Math functions in parameters of Inventor models.
Tip 8971:Linking together values of two dimensions in AutoCAD.
Tip 8281:String concatenation in AutoCAD fields and block attributes.

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