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Find an unknown x coordinate from know y coordinate of curved line



 
 
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  #1  
Old November 6th, 2009, 10:41 PM posted to microsoft.public.excel.charting
Deane
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Posts: 3
Default Find an unknown x coordinate from know y coordinate of curved line

I have drawn a number of (x,y) charts and i was wondering if there is a way
of locating an unknown x coordinate with a known y coordinate directly
without having to manually interpolate the data.
  #2  
Old November 6th, 2009, 11:30 PM posted to microsoft.public.excel.charting
Tushar Mehta
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Posts: 69
Default Find an unknown x coordinate from know y coordinate of curved line

For one option see
Interactive Chart
http://www.tushar-mehta.com/excel/so...lay/index.html

On Fri, 6 Nov 2009 13:41:01 -0800, Deane
wrote:

I have drawn a number of (x,y) charts and i was wondering if there is a way
of locating an unknown x coordinate with a known y coordinate directly
without having to manually interpolate the data.

Regards,

Tushar Mehta
Microsoft MVP Excel 2000-present
www.tushar-mehta.com
Excel and PowerPoint tutorials and add-ins
  #3  
Old November 9th, 2009, 03:11 PM posted to microsoft.public.excel.charting
Luke M
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Posts: 2,672
Default Find an unknown x coordinate from know y coordinate of curved line

Check out the TREND function in XL help. For your case, swap the known x's
and known y's (as XL doesn't really care which is which, its just by
definition programmed to "input x, find y")
--
Best Regards,

Luke M
*Remember to click "yes" if this post helped you!*


"Deane" wrote:

I have drawn a number of (x,y) charts and i was wondering if there is a way
of locating an unknown x coordinate with a known y coordinate directly
without having to manually interpolate the data.

 




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