User Manual

18 Setting Up the Calculator Modes
• Some areas in MATHPRINT™ mode display in classic (one line) formats.
• If you switch between these modes, most entries (except matrix calculations) will
be preserved.
NORMAL SCI ENG
Answers are displayed in standard formats when the calculation or setting forces a
decimal result on the calculator.
Notation for 12345.67 Decimal answer displays as:
NORMAL
12345.67
Retains the decimal notation up to limits of
the calculator display and memory.
12345.67
SCI (Scientific1.234567 x 10
4
)
One digit to the left of the decimal with
the appropriate power of 10 to the right
of *â.
1.234567â4
ENG (Engineering)
12.34567 x 10
3
Up to three digits before the decimal and
the power of 10 (to the right of â) is a
multiple of three.
12.34567â3
Note:
The keypad contains y D, which displays as â on the calculator. *This â in the display
stands for "x10" and the number entered after â becomes the power of 10. The
calculator notation, â, designates the "x10" part of the number without using extra
parentheses. The calculator then follows the order of operations as expected when using
SCI or ENG notation. This notation, â, is not typically accepted on homework and exams,
and written results should use the standard notation, for example, the 1.234567 x 10
4
.
If you select NORMAL notation, but the answer cannot display in 10 digits (or the
absolute value is less than .001), the TI-84PlusCE expresses the answer in scientific
notation.
FLOAT 0 1 2 3 4 5 6 7 8 9
FLOAT (floating) decimal mode displays up to 10 digits, plus the sign and decimal.
FLOAT will display in the status bar.
Selecting 0123456789 specifies the number of digits (0 through 9) to display to the
right of the decimal for decimal answers. FIX# will display in the status bar.
The decimal setting applies to NORMAL, SCI, and ENG notation modes.
The decimal setting applies to these numbers, with respect to the ANSWER mode
setting:
• An answer displayed on the home screen
• Coordinates on a graph