I plugged the equation suggested by Paul into an Excel spreadsheet and compared the error of the fit to the original degree values and notice that it is actually a reasonable fit - not perfect but OK. Here is the spreadsheet of the values and the error column.



This chart is an XY plot of the first two columns of the data in the table.



Finally...If you want to access the actual Excel spreadsheet you can get it via this link.

Michael Karas