Texas Instruments TI-89 Titanium User Manual

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

Texas Instruments TI-89 Titanium Specifications

General

Display Type	LCD
Display Resolution	160 x 100 pixels
CPU	Motorola 68000
CPU Speed	16 MHz
RAM	256 KB
Flash ROM	2.7 MB
Programming Language	TI-BASIC, Assembly
Power Source	4 AAA batteries
Connectivity	I/O port
Dimensions	7.5 x 3.5 x 1 inches