Hp 49g Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 48)

® Textbook: enables you to display expressions and equations in single-

line format (with /, etc) instead of traditional textbook format (with

stacked fractions, raised exponents, etc).

® EQW Small: enables you to choose the minifont for entries in

Equation Writer.

• EQW Small Stack Disp: enables you to display equations and

expressions in the minifont while other objects are displayed in the

system font. This has effect only if you are in textbook mode.

® Header: determines the number of lines of information displayed in

the header—that is, in the status area—of the screen. Valid values are

0, 1, and 2.

® Clock: enables you control whether the date and time are displayed.

® Analog: enables you choose between a digital and analog fonnat for

the clock display.

CAS modes

Certain inodes relate to the HP 49G’s computer algebra system (CAS).

Some examples are the default independent variable, modulo variable,

and complex number display. CAS modes are discussed in detail in

chapter 5.

To change a CAS mode:

1. Press (MODE).

The Calculator Modes input form is displayed.

2. Press CAS.

The CAS Modes input form is displayed.

3. Change the setting.

4. Press OK.

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Flags

The modes that you are more likely to want to change can be changed

easily using the input forms described in the last three sections. There are,

however, many more modes that you can change.

Tírese additional modes can be changed by setting or clearing certain

flags. For example, by setting flag -60, you can lock the alpha keyboard by

pressing (5M) once, ratlrer than twice. Clearing flag -60 returns the mode

to its default setting (where (ALPHA) must be pressed twice to lock the alpha

keyboard).

Page 2-20 Basic operation

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Hp 49g Graphing Calculator Manuel d'utilisateur Page 48