Polynomial trend line problem

[agni_gold]

Hi all ,

I am creating the polynomial trend line of 2nd order and when i select the option from expression tab it will show the trend line ,

but it showing the 2nd order polynomial equation with coefficients ,

my question is that what are these coefficients and from where they are calculated , if i want my own coefficients to pass how can i do

[jochem_zw]

This is not possible with the trendline option

you van use the statistic functions to calculate the trend in à second expression

[agni_gold]

Can you please give me a example ?

Please help !!!!