Texas Instruments TI-89, TI-92

Appendix B: Reference Information 567

8992APPBDOC TI

89/TI

92Plus:8992a

bdoc (English) SusanGullord Revised:02/23/01 1:54 PM Printed:02/23/01 2:24 PM Page567 of 34

y1(x)–y99(x)* y1'(t)–y99'(t)* yi1–yi99* r1(q)–r99(q)*

xt1(t)–xt99(t)* yt1(t)– yt99(t)* z1(x,y)–z99(x,y)* u1(n)–u99(n)*

ui1–ui99* xc yc zc

tc rc qcnc

xfact yfact zfact xmin

xmax xscl xgrid ymin

ymax yscl ygrid xres

@x@y zmin zmax

zscl eyeqeyefeyeψ

ncontour qmin qmax qstep

tmin tmax tstep t0

tplot ncurves diftol dtime

Estep fldpic fldres nmin

nmax plotStrt plotStep sysMath

zxmin zxmax zxscl zxgrid

zymin zymax zyscl zygrid

zxres zqmin zqmax zqstep

ztmin ztmax ztstep zt0de

ztmaxde ztstepde ztplotde zzmin

zzmax zzscl zeyeqzeyef

zeyeψznmin znmax zpltstrt

zpltstep

xyG

xsx

Gx2Gxy Gysy

Gy2corr maxX maxY

medStat medx1 medx2 medx3

medy1 medy2 medy3 minX

minY nStat q1 q3

regCoef* regEq(x)* seed1 seed2

Sx Sy R2

tblStart @tbl tblInput

c1–c99 sysData*

main ok errornum

eqn* exp*

System Variables and Reserved Names

This section lists the names of system variables and reserved

function names that are used by the TI-89 / TI-92 Plus. Only

those system variables and reserved function names that are

identified by an asterisk (*) can be deleted by using DelVar

var

on the entry line.

Graph

Graph Zoom

Statistics

Table

Data/Matrix

Miscellaneous

Solver