Texas Instruments TI-89 Titanium User Manual page 836

Note:
list1
c1–c99. (columns in the last data variable shown in
the Data/Matrix Editor).
variable name and cannot be c1–c99.
QuartReg
MATH/Statistics/Regressions menu
list1 list2
QuartReg ,
Calculates the quartic polynomial regression and
updates the system statistics variables.
All the lists must have equal dimensions except for
.
list5
represents xlist.
list1
represents ylist.
list2
represents frequency.
list3
represents category codes.
list4
represents category include list.
list5
Note:
list1
c1–c99 (columns in the last data variable shown in
the Data/Matrix Editor).
variable name and cannot be c1–c99.
R4Pq()
MATH/Angle menu
xExpression
R4Pq (
) ⇒
xList yList
R4Pq ( ,
xMatrix yMatrix
R4Pq ( ,
Returns the equivalent q-coordinate of the
( x,y ) pair arguments.
Note: The result is returned as either a degree or
radian angle, according to the current angle mode.
Appendix A: Functions and Instructions
through must be a variable name or
list4
does not have to be a
list5
[ ]
list3 list4 list5
, [ ] [, , ]
through must be a variable name or
list4
does not have to be a
list5
) ⇒
yExpression expression
,
list
) ⇒
matrix
¸
Regeq(x)"y1(x) ¸
NewPlot 1,1,L1,L2 ¸
¥ %
In function graphing mode:
{ë 2,ë 1,0,1,2,3,4,5,6}! L1 ¸
{4,3,1,2,4,2,1,4,6}! L2 ¸
QuartReg L1,L2 ¸
ShowStat ¸
¸
Regeq(x)"y1(x) ¸
NewPlot 1,1,L1,L2 ¸
¥ %
In Degree angle mode:
R8Pq(x,y) ¸
In Radian angle mode:
R4Pq(3,2) ¸
R4Pq([3,-4,2],[0,pà4,1.5]) ¸
Done
Done
{ë 2 ë 1 0
... }
{4 3 1 ... }
Done
Done
Done
833