Chapter 1
In this text, we usually use list
L1 for the input data and list L2 for the output data. If there
are any data values already in your lists, first delete any “old” data using the following
procedure. (If your lists are clear, skip these instructions.)
DELETING OLD DATA Whenever you enter new data in your calculator, you should first
delete any previously entered data. There are several ways to do this, and the most convenient
method is illustrated below.
Access the data lists with STAT 1 [EDIT]. (You probably have
different values in your lists if you are deleting “old” data.) Use
▲ to move the cursor over the name L1. Press CLEAR
ENTER
.
Use ► ▲ to move the cursor over
the name
L2. Press CLEAR ENTER .
Repeat this procedure to clear old data
from any of the other lists you will use.
(Now you are ready to enter new data.)
Position the cursor in the first location in list L1. Enter the input
data into list
L1 by typing the years from top to bottom in the L1
column, pressing ENTER after each entry.
After typing the sixth input value, 2004, use
► to cause the
cursor go to the top of list
L2. Enter the output data in list L2 by
typing the entries from top to bottom in the
L2 column, pressing
ENTER after each tax value.
EDITING DATA If you incorrectly type a data value, use the cursor keys (i.e., the arrow
keys
► , ◄ , ▲ , and/or ▼ ) to darken the value you wish to correct and then type the
correct value. Press
ENTER .
• To insert a data value, put the cursor over the value that will be directly below the one you
will insert, and press
2ND DEL (INS). The values in the list below the insertion point
move down one location and a 0 is filled in at the insertion point. Type the data value to
be inserted over the 0 and press
ENTER . The 0 is replaced with the new value.
• To delete a single data value, move the cursor over the value you wish to delete and press
DEL . The values in the list below the deleted value move up one location.
FINDING FIRST DIFFERENCES When the input values are evenly spaced, you can use
program
DIFF to compute first differences in the output values. Program DIFF available to
download at the Calculus Concepts web site:
http://college.hmco.com/mathematics/latorre/calculus_concepts/3e/students/programs.html
Copyright © Houghton Mifflin Company. All rights reserved.
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