HP 50G

18 Getting Started
Getting Started18
51. Use the cursor keys to move along the axes. Press the ZOOM menu key to open a menu with zooming options. In here, you can
zoom in and out, select a region using a box, and find many other options. Press
L a few times to see more options. Feel free
to try several zoom options. Use the ZDFLT menu key to return to the default zoom size. To leave the ZOOM menu, press
L until
you see the PICT menu key (see Figure 43). Press the PICT menu key to return to the main plot screen.
52. Once back to the main plot screen, press the TRACE menu key. A small white box to the right of the menu key indicates the tracer
is active, and the cursor now traces along the function. Use the RIGHT and LEFT cursor keys to move (see Figure 44). Press the FCN
menu key for options for finding roots, areas, intersections, and slope, among other options. Press the ROOT menu key to calculate
the closest root (see Figure 45). Press the
L key so the menu appears again, then L again to see more options. Here, press
the F' menu key. The derivate of your function is performed, and then drawn on the screen along with the original function (see
Figure 46).
Figure 46
Figure 43 Figure 44 Figure 45