HP 39gs Master Manual page 129

Now change to
PLOT SETUP
From the view, press the
NUM
Calculator Tip
Make sure that your data set is defined and
SETUP
given for data sets that are defined and
Showing the line of best fit
If you now press the
PLOT
there is no line of best fit on yours, press the
programmable functions along the bottom of the screen and then press
the key.
As soon as the line of best fit has been obtained, you can switch back to the
This equation is only calculated when called for by pressing the
view and set the axes as shown right.
key and you will obtain the results listed in the screens shown below.
view before you try to obtain these results. Results are only
key you will see the graph shown right.
ed in the
ed.
If
key to get the list of
key.
129
SYMB
view to get its equation.
SYMB