Texas Instruments TI-89 User Manual
Operating the Calculator
170
Internally, the calculator calculates and retains all decimal results with up to 14
significant digits (although a maximum of 12 are displayed).
significant digits (although a maximum of 12 are displayed).
Notes:
•
Regardless of the
Display Digits
setting, the full value is used for internal floating-
point calculations to ensure maximum accuracy.
•
A result is automatically shown in scientific notation if its magnitude cannot be
displayed in the selected number of digits.
displayed in the selected number of digits.
Exponential Format Mode
Exponential Format Mode
Exponential Format Mode
Exponential Format Mode
Setting
Example
Description
FIX
(0–12)
(0–12)
123.
123.5
123.46
123.457
123.5
123.46
123.457
(FIX 0)
(FIX 1)
(FIX 2)
(FIX 3)
(FIX 1)
(FIX 2)
(FIX 3)
Results are rounded to the
selected number of decimal
places.
selected number of decimal
places.
FLOAT
123.456789012
Number of decimal places varies,
depending on the result.
depending on the result.
FLOAT
(1–12)
(1–12)
1.E 2
1.2E 2
123.
123.5
123.46
123.457
1.2E 2
123.
123.5
123.46
123.457
(FLOAT 1)
(FLOAT 2)
(FLOAT 3)
(FLOAT 4)
(FLOAT 5)
(FLOAT 6)
(FLOAT 2)
(FLOAT 3)
(FLOAT 4)
(FLOAT 5)
(FLOAT 6)
Results are rounded to the total
number of selected digits.
number of selected digits.
By default,
Exponential Format = NORMAL
.
You can use
3 to select from three
settings.