Linetan Catalog; Linevert Catalog; Linreg Catalog - Texas Instruments TITANIUM TI-89 User Manual

LineTan
CATALOG
expression1
LineTan
Displays the Graph screen and draws a line
tangent to
expression1
function, where
independent variable, and
value of the point that is tangent.
Note: In the example shown,
graphed separately.
expression1.
LineVert
CATALOG
x drawMode
LineVert [,
Displays the Graph screen and draws, erases, or
inverts a vertical line at window position
If drawMode
If drawMode
If drawMode
off to on (inverts pixels along the line).
Note: Regraphing erases all drawn items. See
also
PxlVert
LinReg
MATH/Statistics/Regressions menu
list1 list2
LinReg ,
Calculates the linear regression and updates all
the system statistics variables.
All the lists must have equal dimensions except
for .
list5
list1 represents xlist.
list2 represents ylist.
list3 represents frequency.
represents category codes.
list4
represents category include list.
list5
Note:
list1
or c1–c99 (columns in the last data variable
shown in the Data/Matrix Editor).
have to be a variable name and cannot be c1–
c99.
836
expression2
,
at the point specified.
expression1
is an expression or the name of a
is assumed to be the
x
expression2
expression1
does not graph
LineTan
]
= 1, draws the line (default).
= 0, turns off the line.
= ë 1, turns a line that is on to off or
.
[ ]
list3 list4 list5
, [ ] [, , ]
through must be a variable name
list4
list5
In function graphing mode and a
window:
Graph cos(x)
@
"
¥ "
H
is the
x
LineTan cos(x),p/4 ¸
is
In a
ZoomStd
LineVert ë 2.5 ¸
.
x
In function graphing mode:
{0,1,2,3,4,5,6}! L1 ¸
{0,2,3,4,3,4,6}! L2 ¸
LinReg L1,L2 ¸
ShowStat ¸
¸
Regeq(x)"y1(x) ¸
NewPlot 1,1,L1,L2 ¸
does not
¥%
Appendix A: Functions and Instructions
ZoomTrig
window:
{0 1 2
{0 2 3
}
...
}
...
Done
Done
Done