2011

Table Of Contents
Here is the command prompr sequence:
Command: circle
Specify center point for circle or [3P/2P/Ttr (tan tan radius)]: 'cal
>> Expression: (mid+cen)/2
>> Select entity for MID snap: Select the notch line (1)
>> Select entity for CEN snap: Select the large circle (2)
Diameter/<Radius>: 'cal
>> Expression: 1/5*rad
>> Select circle, arc or polyline segment for RAD function: Select the large circle
(3)
Calculate Mathematical Expressions in a Dialog Box
You can also enter and evaluate mathematical expressions in a dialog box
using the following format: =expression<Alt+Enter>.
NOTE To evaluate expressions in a dialog box, make sure the system variable,
CALCINPUT, is set to 1.
To start the Command prompt calculator
Do one of the following:
At the Command prompt, enter CAL. Then, enter a CAL expression.
At a prompt for a command in progress, enter CAL to start the CAL
command transparently. Then, enter a CAL expression to calculate a value
for that prompt.
Quick Reference
CAL
Evaluates mathematical and geometric expressions.
644 | Chapter 17 Use Precision Tools