Texas Instruments TI-89 Titanium User Manual page 111

Steps and keystrokes
4. Move the cursor to row 1 in column 2
(r1c2). Then enter the corresponding
number of buildings.
8 C moves the cursor to the top of the
page. After typing data for a cell, you can
press ¸ or D to enter the data and
move the cursor down one cell. Pressing
C enters the data and moves the cursor
up one cell.
@ B 8 C 4 ¸ 31 ¸ 42 ¸
9 ¸ 20 ¸ 55 ¸ 73 ¸
5. Move the cursor to row 1 in column 1
(r1c1). Sort the data in ascending order of
population.
This sorts column 1 and then adjusts all
other columns so that they retain the
same order as column 1. This is critical
for maintaining the relationships between
columns of data.
To sort column 1, the cursor can be
anywhere in column 1. This example has
you press
@ 8 C
so that you can see the first four rows.
@ A 8 C 2 ˆ 4
Previews
Display
108