Hp 49g Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 105)

You can set the factor by which you zoom in or zoom out by changing the

values on the Zoom Factors input form.

1. Press ZFACT to select zoom factor.

2. Change the values in the H-Factor and V-Factor fields.

Keep the values you enter the same if you want zooming to be

horizontally and vertically proportional. (See also “Forcing a

proportional zoom” below.)

3. If you want zooming to center around the position of your cursor,

check the Recenter at Crosshairs field.

4. Press OK.

Forcing a proportional zoom

Press ZSQR to select zoom square.

The plot is redrawn with the vertical scale the same as the horizontal

scale.

Resetting the zoom default

Press ZDFLT to select ZOOM DEFAULT. The plot is redrawn using the default

display ranges.

Setting the zoom factor

Analyzing Functions

The HP 49G provides numerous tools for analyzing the mathematical

properties of fimctions. For example, you can calculate roots, extrema,

slopes, areas, and the point of intersection of two graphs.

Wliere you have plotted more than one function, you may first need to

select the function you want to analyze. By default, the first function listed

on the Plot Fimctions screen is the fimction that is selected.

To select another function for analysis:

1. Press TRACE to turn on trace mode. (See “Tracing a plot” on page 4-35.)

2. Press ® or ® until the cursor is on the function you want to analyze.

You can also select another function by pressing nxeq (found on

the second page of the function menu). In this case, you do not

need to be in trace mode.

Plotting graphs

Page 4-37

1 2 ... 100 101 102 103 104 105 106 107 108 109 110 ... 241 242

Pas de commentaire

Hp 49g Graphing Calculator Manuel d'utilisateur Page 105