December 21st, 2010, 06:49 PM  #1 
Senior Member Joined: Apr 2010 Posts: 451 Thanks: 1  straight line
How do we draw a straight line??

December 21st, 2010, 08:34 PM  #2 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,913 Thanks: 1112 Math Focus: Elementary mathematics and beyond  Re: straight line
To what degree of precision?

December 21st, 2010, 10:59 PM  #3 
Senior Member Joined: Nov 2010 Posts: 502 Thanks: 0  Re: straight line
I'm pretty fond of rulers myself, though I often use the straight side of a protractor because it makes me look smarter. My father was really levelheaded, and for big lines we would trace the outline of his head. What, exactly, are you looking for? 
December 22nd, 2010, 04:15 AM  #4 
Global Moderator Joined: Dec 2006 Posts: 20,302 Thanks: 1972  
December 22nd, 2010, 12:32 PM  #5  
Senior Member Joined: Nov 2010 Posts: 502 Thanks: 0  Re: straight line Quote:
 
December 23rd, 2010, 08:43 AM  #6 
Member Joined: Jun 2007 From: Richmond, VA Posts: 46 Thanks: 0  Re: straight line
Use a slide rule and you'll look even smarter.

December 23rd, 2010, 09:47 AM  #7 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,913 Thanks: 1112 Math Focus: Elementary mathematics and beyond  Re: straight line
Produce a 1dimensional object in and you'll look like a (trivial) genius!

December 23rd, 2010, 08:15 PM  #8 
Senior Member Joined: Nov 2010 Posts: 502 Thanks: 0  Re: straight line
Perhaps we should assume the Greek's magical straightedge, which can draw a perfectly straight line between any two points no matter how far.


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