Is there a formula that will give me the equation for the line of best fit of a data set, the line being a 6th degree polynomial? I know how to graph the table and add a line of best fit while showing the equation but as far as I know the equation cannot be used in the given format in excel. If there was a way to refer back to the equation for further calculations that would work as well. Would it be easier to use a different program such as Matlab for in-dept data analysis? Thanks.