hi every body
I have a little problem with my data in excel
and it is :
I want get a quadratic equation from my data which recieved from one unit in my company like in my sample file in attachment
please help me
hi every body
I have a little problem with my data in excel
and it is :
I want get a quadratic equation from my data which recieved from one unit in my company like in my sample file in attachment
please help me
Last edited by pedjvak; 11-12-2012 at 04:26 AM.
If solved remember to mark Thread as solved
Dear Patel45
thanks for your attention but it is not solving my problem
because it give me a wrong equation
I try it and unfortunatly it seems have a big telorance when you enter the formula and enter numbers (x) inthe formul it get us wrong result(y)
My result is y=2x^2+3x-4, it matches perfect
yes it is true
but when i right click on chart and try which issued on that site(your address)I get this equation
please advise meCapture.JPG
That looks like you selected "linear" or "1st order polynomial" when selecting the type of trendline in trendline options. Review your trendline options dialog (review the help file if needed) and make sure you are selecting "polynomial" and "2nd order" for the type of trendline.
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