Texas Instruments TI-89 Manual Book page 445

CubicReg
MATH/Statistics/Regressions menu
CubicReg list1, list2
Calculates the cubic polynomial regression
and updates all the statistics variables.
All the lists must have equal dimensions
except for
represents xlist.
list1
represents ylist.
list2
represents frequency.
list3
represents category codes.
list4
represents category include list.
list5
Note:
list1
name or c1–c99 (columns in the last data
variable shown in the Data/Matrix Editor).
does not have to be a variable name and
list5
cannot be c1–c99.
cumSum()
MATH/List menu
cumSum(list1)
Returns a list of the cumulative sums of the
elements in
cumSum(matrix1)
Returns a matrix of the cumulative sums of
the elements in
cumulative sum of the column from top to
bottom.
CustmOff
CATALOG
CustmOff
Removes a custom toolbar.
CustmOn
control a custom toolbar. Manually, you can
press 2 ¾ to toggle a custom toolbar
on and off. Also, a custom toolbar is removed
automatically when you change applications.
CustmOn
CATALOG
CustmOn
Activates a custom toolbar that has already
been set up in a
CustmOn
control a custom toolbar. Manually, you can
press 2 ¾ to toggle a custom toolbar
on and off.
428 Appendix A: Functions and Instructions
[ ]
, [list3] [, list4, list5]
.
list5
through must be a variable
list4
list
, starting at element 1.
list1
matrix
. Each element is the
matrix1
and enable a program to
CustmOff
Custom...EndCustm
and enable a program to
CustmOff
In function graphing mode.
{0,1,2,3}! L1 ¸
{0,2,3,4}! L2 ¸
CubicReg L1,L2 ¸
ShowStat ¸
¸
regeq(x)"y1(x) ¸
NewPlot 1,1,L1,L2 ¸
¥ %
cumSum({1,2,3,4}) ¸
[1,2;3,4;5,6]! m1 ¸
cumSum(m1) ¸
See program listing example.
Custom
See program listing example.
Custom
block.
{0 1 2 3}
{0 2 3 4}
Done
Done
Done
{1 3 6 10}
1 2
3 4
5 6
1 2
4 6
9 12