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August 25th, 2013, 03:30 AM  #1 
Newbie Joined: Aug 2013 Posts: 1 Thanks: 0  How to find function from table data
Hi. I need help with searching function from 2d table data. I can find function for 2 variables (1 dependent and 1 independent) with Microsoft Excel by adding data to Line chart, show trendline and show its equation on chart. But how to do this with 2 independent variables and one dependent? In Microsoft Excel I can put table data to Surface chart, but there is no option like "show trendsurface"... How can I find that function? (note: I don't need exact function, some aproximation would be good enought). Thanks for answer! 
August 25th, 2013, 12:36 PM  #2 
Senior Member Joined: Mar 2012 From: Belgium Posts: 654 Thanks: 11  Re: How to find function from table data
I have no clue what you are talking about. maybe you could give us an example of what you mean.


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