HP 39gII - Page 17

HP Apps and App Views 11
HP Apps and App Views
11
One note is in order concerning the Plot view. The HP 39gII gives you three options for
graphing. By default, the HP 39gII uses the Adaptive method, an advanced method that
gives very accurate results.
You can choose the more traditional method, called Fixed-Step Segments, which samples x-
values, computes their corresponding y-values, and then plots and connects the points. Or
you can choose Fixed-Step Dots, which works like Fixed-Step Segments but does not connect
the points. This setting is found on Page 2 of the Plot Setup.
The figures to the right illustrate the differences among these methods for the function
f(x)=sin(e
x
). The top figure uses the Adaptive method; the middle one uses Fixed-Step
Segments, and the bottom one uses Fixed-Step Dots.