Decimals And Decimal Places - Texas Instruments TI-30X IIS User Manual

Decimals and Decimal Places

Keys
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.
0-9 Sets the number of decimal
places.
1
© 1999 T I I
EXAS NSTRUMENTS NCORPORATED
Notes
2
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
and the mantissa of scientific and
engineering notation results.
The TI-30X ÙS 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-30X ÙS 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 2 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.
TI-30X ÙS: A Guide for Teachers
6
45