Extracting Data from a Polynomial Trendline

[Miss S]

Hi All,

I am trying to get the data from a polynomial trendline (order 6).

I have taken the formula from the graph and filled in all the extra details/corrected the symbols etc...
However the values don't actually match the graph data.
Could anybody suggest what I am doing wrong or maybe give me a different way of finding out this data?

Cheers
Miss S

 

[VoG]

Try this: right click the trendline equation on the chart and select Format Trendline Label. Change to Scientific with plenty of decimal places. You may then get a better agreement if you use those coefficients.

 

[Miss S]

Hi, Thanks for replying.

I tried this and the correct values still seem not to be appearing.
Anything else you can suggest?