Texas Instruments TI-89 Manual Book page 435

BldData
CATALOG
BldData [dataVar]
Creates data variable
information used to plot the current graph.
BldData is valid in all graphing modes.
If
dataVar
system variable
Note: The first time you start the Data/Matrix
Editor after using
(depending on the argument you used with
) is set as the current data variable.
BldData
The incremental values used for any
independent variables (
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.
3D graphing mode has two independent
variables. In the sample data to the right,
notice that
increments through its range of values.
Then, x increments to its next value and
again increments through its range. This
pattern continues until
through its range.
ceiling()
MATH/Number menu
ceiling(expression1)
Returns the nearest integer that is ‚ the
argument.
The argument can be a real or a complex
number.
Note: See also
ceiling(list1)
ceiling(matrix1)
Returns a list or matrix of the ceiling of each
element.
418 Appendix A: Functions and Instructions
based on the
dataVar
is omitted, the data is stored in the
.
sysData
,
BldData
dataVar
in the example to
x
remains constant as
x y
has incremented
x
integer
floor() .
list
matrix
In function graphing mode and Radian
angle mode:
8ùsin(x)!y1(x) ¸
2ùsin(x)!y2(x) ¸
ZoomStd ¸
or
sysData
"
TI-89:
TI-92 Plus:
BldData ¸
O 6 ¸
Note: The following sample data is from a
3D graph.
y
ceiling(0.456) ¸
ceiling({ë3.1,1,2.5}) ¸
ceiling([0,ë3.2i;1.3,4]) ¸
¥ "
{ë3. 1 3.}
ë3.øi
0
[
2.
Done
Done
Done
1.
]
4