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HP 48gII User Manual

Page 512

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Page 16-34

F (0.5, 4, 1/3) = (-0.167070735979,0.)
F (0.5, 5, 1/3) = (-0.294394690453,0.)
F (0.5, 6, 1/3) = (-0.305652599743,0.)


To compare the results from the series with those of the original function, load
these functions into the PLOT – FUNCTION input form (

„ñ,

simultaneously if using RPN mode):


Change the limits of the Plot Window (

„ò) as follows:

Press the soft-menu keys

@ERASE @DRAW to produce the plot:

Notice that the series, with 5 terms, “hugs” the graph of the function very
closely in the interval 0 to 2 (i.e., through the period T = 2). You can also
notice a periodicity in the graph of the series. This periodicity is easy to
visualize by expanding the horizontal range of the plot to (-0.5,4):

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