498 Appendix A: Functions and Instructions
8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 498 of 132
Shade CATALOG
Shade expr1, expr2, [xlow], [xhigh], [pattern], [patRes]
Displays the Graph screen, graphs expr1 and
expr2, and shades areas in which expr1 is less
than expr2. (expr1 and expr2 must be
expressions that use x as the independent
variable.)
xlow and xhigh, if included, specify left and
right boundaries for the shading. Valid inputs
are between xmin and xmax. Defaults are xmin
and xmax.
pattern specifies one of four shading patterns:
1 = vertical (default)
2 = horizontal
3 = negative-slope 45¡
4 = positive-slope 45¡
patRes specifies the resolution of the shading
patterns:
1= solid shading
2= 1 pixel spacing (default)
3= 2 pixels spacing
©
10= 9 pixels spacing
Note: Interactive shading is available on the
Graph screen through the Shade instruction.
Automatic shading of a specific function is
available through the Style instruction. Shade
is not valid in 3D graphing mode.
In the ZoomTrig viewing window:
Shade cos(x),sin(x) ¸
TI-89: "
TI-92 Plus: ¥"
ClrDraw ¸Done
S
h
a
d
e cos
(
x
)
,sin
(
x
)
,0,5
¸
TI-89: "
TI-92 Plus: ¥"
ClrDraw ¸Done
S
h
a
d
e cos
(
x
)
,sin
(
x
)
,0,5,2
¸
TI-89: "
TI-92 Plus: ¥"
ClrDraw ¸Done
Shade cos(x),sin(x),0,5,2,1
¸