Texas Instruments Titanium TI-89, Руководство пользователя

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Data/Matrix Editor 515
• Press
A
or
B
to remove the highlighting. Then edit the old expression.
Note:
To cancel any changes, press
N
before pressing
¸
.
Note:
The seq function is described in the Technical Reference module. If you refer
to an empty column, you will get an error message unless
Auto-calculate = OFF
.
Note:
For a data variable, header definitions are saved when you leave the Data/ Matrix
Editor. For a list variable, the definitions are not saved (only their resulting cell values).
You can use an expression that: For example:
Generates a series of numbers. c1=seq(x^2,x,1,5)
c1={1,2,3,4,5}
Refers to another column.
c2=2
ù
c1
c4=c1
ù
c2–sin(c3)
3. Press
¸
,
D
, or
C
to save the
definition and update the columns.
Ê
c1=seq(x,x,1,7);
Ë
c2=2
ù
c1;
Ì
You cannot directly change a locked
cell (
Œ
) since it is defined by the column header.
Ê Ë
Ì