Texas Instruments TI-34 II Teachers Guide - Page 64

Decimals and Decimal Places - calculator scientific

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Decimals and Decimal Places 6 Keys These numbered paragraphs provide explanations for the corresponding numbered keys on the illustration below. 1. 8 enters a decimal point. 2. % , displays the following menu, which lets you set the number of decimal places. F 0 1 2 3 4 5 6 7 8 9 F Sets floating decimal (standard) notation. This is the default setting. 0-9 Sets the number of decimal places. 2 1 Notes • The examples on the transparency masters assume all default settings. • % , 8 removes the setting and returns to standard notation (floating decimal). • The FIX setting affects all decimal results including the mantissa of scientific notation results. • The TI-34 Û automatically rounds the result to the number of decimal places selected. For example, when the decimal is set to 2 places, 0.147 becomes 0.15 when you press

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© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI
-
34
Û
: A Guide for Teachers
58
Decimals and Decimal Places
6
Keys
These numbered paragraphs provide
explanations for the corresponding numbered
keys on the illustration below.
1.
8
enters a decimal point.
2.
%
‚
displays the following menu,
which lets you set the number of
decimal places.
F 0 1 2 3 4 5 6 7 8 9
F
Sets floating decimal
(standard) notation. This is
the default setting.
0-9
Sets the number of decimal
places.
Notes
•
The examples on the transparency
masters assume all default settings.
•
%
‚
8
removes the setting and
returns to standard notation (floating
decimal).
•
The
FIX
setting affects all decimal
results including the mantissa of
scientific notation results.
•
The TI
-
34
Û
automatically rounds the
result to the number of decimal places
selected. For example, when the decimal
is set to 2 places, 0.147 becomes 0.15
when you press
<
. The TI
-
34
Û
also
rounds or pads resulting values with
trailing zeros to fit the selected setting.
For example, when the decimal is set to 5
places, 0.147 becomes 0.14700 when you
press
<
.
•
All results are displayed to the FIX
setting until you clear the setting by
either pressing
%‚
8
or selecting F
(Floating) on the decimal notation menu.
Resetting the calculator also clears the
FIX
setting.
•
After pressing
%‚
, you can select
the number of decimal places in two
ways:
-
Press
!
or
"
to move to the number
of decimal places you want, and then
press
<
, or
-
Press the number key that
corresponds to the number of
decimal places you want.
•
FIX
affects only the results, not the
entry.
1
2