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myxpykalix
12-15-2009, 01:26 AM
For your columns if you need to calculate your circumference and want to do it the easy way
The fellow at www.cncwrapper.com (http://www.cncwrapper.com) has a free circumference calculator that is handy to use

http://www.cncwrapper.com/page5.htm

curtiss
12-15-2009, 11:02 AM
pi for the visually impared...great if you work with circles a lot...

http://pi.ytmnd.com/