Texas Instruments TI-89 Manual Book page 266

Using an Existing
List as a Column
Note: If you have a
CBL 2é/CBL™ or CBRé,
use these techniques for
your collected lists.
Tip: Use 2 ° to
see existing list variables.
To Fill a Matrix with
a List
The Auto-calculate
Feature
Tip: You may want to set
Auto-calculate = OFF to:
Make multiple changes
without recalculating
each time.
Enter a definition such
as c1=c2+c3 before you
enter columns 2 and 3.
Override any errors in a
definition until you can
debug the error.
Suppose you have one or more existing lists, and you want to use
those existing lists as columns in a data variable.
From the:
Data/Matrix Editor
Home screen or a
program
You cannot use the Data/Matrix Editor to fill a matrix with a list.
However, you can use the
or a program. For information, refer to Appendix A.
For list and data variables, the Data/Matrix Editor has an
feature. By default,
Auto-calculate
you make a change that affects a header definition (or any column
referenced in a header definition), all header definitions are
recalculated automatically. For example:
¦
If you change a header definition, the new definition is applied
automatically.
¦
If column 2's header is defined as
in column 1 is automatically reflected in column 2.
To turn off and on from the Data/Matrix Editor:
Auto-calculate
1. Press ƒ
9
—or—
¥ Í
TI-89:
¥
TI-92 Plus: F
2. Change
Auto-Calculate
OFF or ON .
3. Press ¸ to close the
dialog box.
If
Auto-calculate = OFF
header definitions are not recalculated until you set
.
Auto-calculate = ON
Do this:
In the applicable column, use † to define
the column header. Refer to the existing
list variable. For example:
c1=list1
Use the command as described in
NewData
Appendix A. For example:
NewData datavar, list1 [, list2] [, list3] ...
Data variable. If this data
variable already exists, it will
be redefined based on the
specified lists.
command from the Home screen
listú mat
Auto-calculate
c2=2ù c1
to
and you make changes as described above, the
Chapter 15: Data/Matrix Editor
Existing list variables to
copy to columns in the
data variable.
= . Therefore, if
ON
, any change you make
249