Hp 49g Graphing Calculator Bedienungsanleitung PDF herunterladen (Seite 36)

Multi-line entries

The infomiation you enter on the command line can occupy more than

one line, for example, when you ai'e entering a program. (See chapter 10,

“Introduction to prograiraning”, for information on entering programs.) To

create a new line, press 0 0. Wliat you have already typed moves up and

a new line becomes available for you to continue entering your object.

You can set a display mode so that each new line is automatically

indented. See “Display modes” on page 2-19 for information.

Entering numbers

Positive numbers

You enter a positive number by pressing the appropriate digit keys and, if

necessary, the decimal point key (

Negative numbers

To enter a negative number, type the number as if it was a positive nmnber

and then press ©. Tire @ key changes the sign of the number on the

command line: from positive to negative, or negative to positive.

Integers and real numbers

If you are working in exact mode—explained on page 2-23—the answer

given to a calculation will depend on the way you represent integers. If

you represent an integer as a real number—by entering a decimal point

after die number—the HP 49G assiunes that you want to switch to

approximate mode (see page 2-23). Therefore, you can obtain an

approximate answer in exact mode by entering integers as real niunbers.

■f

■ 5

" 2.

2,5

(A) (B)

Figure 2-2: In case (a) 2 is entered as an integer; in case (B), 2 is entered as a real number.

Page 2-8

Basic operation

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Hp 49g Graphing Calculator Bedienungsanleitung Seite 36