Texas Instruments TI-86 - Manual (Page 104)

92
Chapter 6: Graph Tools
06TOOLS.DOC TI-86, Chap 6, US English Bob Fedorisko Revised: 02/13/01 2:23 PM Printed: 02/13/01 3:01 PM Page 92 of 22 06TOOLS.DOC TI-86, Chap 6, US English Bob Fedorisko Revised: 02/13/01 2:23 PM Printed: 02/13/01 3:01 PM Page 92 of 22
BOX Draws a box to define the graph screen
ZIN (zoom in) Magnifies the graph around the cursor by factors of xFact and yFact
ZOUT (zoom out) Displays more of the graph around the cursor by factors of xFact and yFact
ZSTD Displays the graph in standard dimensions; resets the default window variable values
ZPREV Reverses the last zoom operation; window variables revert to previous values
ZFIT Recalculates yMin and yMax to include the minimum and maximum y values of the
selected functions between the current xMin and xMax
ZSQR Sets equal-size pixels on the x-axis and y-axis; adjusts window variable values in one
direction so that
@ x= @ y , while xScl and yScl remain unchanged; the midpoint of the
current graph (not the axes intersection) becomes the midpoint of the new graph
ZTRIG Sets built-in window variables appropriate for trigonometric functions in Radian mode:
xMin= L 8.24668071567 xScl=1.5707963267949 ( p à2) yMax=4
xMax=8.24668071567 yMin= L 4 yScl=1
ZDECM Sets @ x=.1 , @ y=.1 , xMin= L 6.3 , xMax=6.3 , xScl=1 , yMin= L 3.1 , yMax=3.1 , and yScl=1
ZDATA Sets window variable values to display all statistical data points; adjusts xMin and xMax
only; applies to histograms, scatter plots, and stat plots only (Chapter 14)
ZRCL Uses window variable values stored in the user-defined zoom-window variables ( ZSTO )
ZFACT Displays the ZOOM FACTORS screen
ZOOMX Zooms out by a factor of xFact only; ignores yFact (page 93)
ZOOMY Zooms out by a factor of yFact only; ignores xFact
ZINT Sets integer values on the axes; sets @ x=1 , @ y=1 , xScl=10 , and yScl=10 ; the current
cursor becomes the center of the new graph screen after you press b
ZSTO Stores current window variable values to user-defined zoom-window variables ( ZRCL )
To cancel the effect of any
ZOOM
menu item and return
to the default window variable
values, select ZSTD.
If you graph a circle but it
appears elliptical, you can
use ZSQR to reset the
window variable values so
that the circle graph appears
circular.