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HP TI-83 Manual

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Getting Started 11
8300GETM.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 11:06 AM Printed: 02/19/01 11:06
AM Page 11 of 18
You can adjust the way a table is displayed to get more information about a
defined function. With smaller values for
@
Tbl
, you can zoom in on the table.
1. Press
3
Í
to set TblStart. Press
Ë
1
Í
to set
@
Tbl
.
This adjusts the table setup to get a more
accurate estimate of
X for maximum
volume
Y
1
.
2. Press
y
[
TABLE
].
3. Press
†
and
}
to scroll the table.
Notice that the maximum value for
Y
1
is
410.26, which occurs at X=3.7. Therefore,
the maximum occurs where
3.6<X<3.8.
4. Press
y
[
TBLSET
]. Press 3
Ë
6
Í
to
set
TblStart. Press
Ë
01
Í
to set
@
Tbl
.
5. Press
y
[
TABLE
], and then press
†
and
}
to scroll the table.
Four equivalent maximum values are
shown,
410.60 at X=3.67, 3.68, 3.69, and
3.70.
6. Press
†
and
}
to move the cursor to 3.67.
Press
~
to move the cursor into the
Y
1
column.
The value of
Y
1
at X=3.67 is displayed on
the bottom line in full precision as
410.261226.
7. Press
†
to display the other maximums.
The value of
Y
1
at X=3.68 in full precision is
410.264064, at X=3.69 is 410.262318, and at
X=3.7 is 410.256.
The maximum volume of the box would
occur at
3.68 if you could measure and cut
the paper at .01-cm. increments.
Zooming In on the Table: Box with Lid
… 19 …


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