Texas Instruments TI-89 Voyage 200, Руководство пользователя

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Operating the Calculator 169
Note:
To retain an EXACT form, use fractions instead of decimals. For example, use 3/2
instead of 1.5.
The following chart compares the three settings.
Note:
To evaluate an entry in APPROXIMATE form, regardless of the current setting,
press
8 ¸
.
Display Digits Mode Display Digits Mode Display Digits Mode Display Digits Mode
By default,
Display Digits = FLOAT 6
, which means that results are rounded to a
maximum of six digits. You can use
3
to select different settings. The settings apply
to all exponential formats.
Entry
Exact
Result
Approximate
Result
Auto
Result
8/4 2 2. 2
8/6 4/3 1.33333 4/3
8.5
ù
3
51/2 25.5 25.5 — A decimal in the
entry forces a
floating-point result
in AUTO.
‡ (2)/2
.707107
p
ù
2 2
⋅
p
6.28319
2
⋅
p
p
ù
2. 2
⋅
p
6.28319 6.28319
2
2
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2
2
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