Multi-line entries, Entering numbers, Positive numbers – HP 49g Graphing Calculator User Manual
Page 36: Negative numbers, Integers and real numbers, Multi-line entries -8, Entering numbers -8, Entries, Multi-line
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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 (
0
).
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
5
" 2 .
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
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