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From: ImageAnalyst <imageanalyst@mailinator.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: Find corresponding y coordinates for given values of x in an 
	image
Date: Sat, 4 Jul 2009 06:43:05 -0700 (PDT)
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I can't see the image.  Where did you post it?  There is nothing
attached.

Can you make x and y arrays?  Why did you pick certain sparse values?
What happens at the "in-between" x values?