System Variables And Reserved Names - Texas Instruments TI-89 Manual Book

System Variables and Reserved Names

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This section lists the names of system variables and reserved
function names that are used by the
those system variables and reserved function names that are
identified by an asterisk (*) can be deleted by using
on the entry line.
y1(x)–y99(x)* y1'(t)–y99'(t)*
xt1(t)–xt99(t)* yt1(t)– yt99(t)* z1(x,y)–z99(x,y)* u1(n)–u99(n)*
ui1–ui99* xc
tc rc
xfact yfact
xmax xscl
ymax yscl
@x @y
zscl eyeq
qmin
ncontour
tmin tmax
tplot ncurves
Estep fldpic
nmax plotStrt
zxmin zxmax
zymin zymax
zxres zqmin
ztmin ztmax
ztmaxde ztstepde
zzmax zzscl
zeye znmin
zpltstep
x y
2
Gx Gxy
2
Gy
corr
medStat medx1
medy1 medy2
minY nStat
regCoef* regEq(x)*
Sx Sy
@tbl
tblStart
c1–c99 sysData*
main ok
eqn* exp*
TI-89 / TI-92 Plus
yi1–yi99*
yc
qc
zfact
xgrid
ygrid
zmin
eyef
qmax
tstep
diftol
fldres
plotStep
zxscl
zyscl
zqmax
ztstep
ztplotde
zeyeq
znmax
Gx
Gy
maxX
medx2
medy3
q1
seed1
2
R
tblInput
errornum
Appendix B: Reference Information
. Only
var
DelVar
r1(q)–r99(q)*
zc
nc
xmin
ymin
xres
zmax
eye
qstep
t0
dtime
nmin
sysMath
zxgrid
zygrid
zqstep
zt0de
zzmin
zeyef
zpltstrt
sx
sy
maxY
medx3
minX
q3
seed2
567