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418 Appendix A: Functions and Instructions
8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 418 of 132
BldData
CATALOG
BldData
[
dataVar
]
Creates data variable
dataVar
based on the
information used to plot the current graph.
BldData
is valid in all graphing modes.
If
dataVar
is omitted, the data is stored in the
system variable
sysData
.
Note:
The first time you start the Data/Matrix
Editor after using
BldData
,
dataVar
or
sysData
(depending on the argument you used with
BldData
) is set as the current data variable.
The incremental values used for any
independent variables (
x
in the example to
the right) are calculated according to the
Window variable values.
For information about the increments used to
evaluate a graph, refer to the chapter that
describes that graphing mode.
In function graphing mode and Radian
angle mode:
8
ù
sin(x)
!
y1(x)
¸
Done
2
ù
sin
(
x
)
!
y2
(
x
)
¸
Done
ZoomSt
d
¸
TI-89:
"
TI-92 Plus:
¥
"
BldData
¸
Done
O
6
¸
3D graphing mode has two independent
variables. In the sample data to the right,
notice that
x
remains constant as
y
increments through its range of values.
Then,
x
increments to its next value and
y
again increments through its range. This
pattern continues until
x
has incremented
through its range.
Note:
The following sample data is from a
3D graph.
ceiling()
MATH/Number menu
ceiling(
expression1
)
⇒
integer
Returns the nearest integer that is
‚
the
argument.
The argument can be a real or a complex
number.
Note:
See also
floor()
.
ceiling(0.456)
¸
1.
ceiling(
list1
)
⇒
list
ceiling(
matrix1
)
⇒
matrix
Returns a list or matrix of the ceiling of each
element.
ceiling({
ë
3.1,1,2.5})
¸
{
ë
3. 1 3.}
ceiling([0,
ë
3.2
i
;1.3,4])
¸
[
0
2.
ë
3.
ø
i
4
]