Texas Instruments TI InterActive! Getting Started Manual page 13

TIP: In Automatic mode,
you can force a decimal
result by using a
decimal in the entry.
The decimal point
in the entry forces
the Automatic
result to a decimal.
Note the three options available under Computation Mode:
Uses Exact where possible, but uses
Automatic
Approximate
decimal point. Also, certain functions may
display Approximate results even if your entry
does not contain a decimal point.
Any result that is not a whole number is
Exact
displayed in a fractional or symbolic form (
,
that could be introduced by intermediate
results in chained calculations.
All numeric results, where possible, are
Approximate
displayed in decimal form.
3. Click the Approximate option to select it, and click OK. The
result in the Math Box becomes a decimal approximation.
4. Click the Mode Settings button
Computation Mode back to Automatic , the original setting,
and click OK.
This chart compares the Computation Mode settings.
Automatic
Entry Result
8 4 2
4
8 6 3
8.5ù3 25.5
2
sqrt(2) 2
2
ù2 2⋅
ù2. 6.28319
when your entry contains a
, etc.). This mode reduces rounding errors
2
again, and change the
Exact Approximate
Result Result
2 2.
4
3 1.33333
51
2 25.5
2
.707107
2
2⋅ 6.28319
6.28319
2⋅
Getting Started with TI InterActive!
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