Texas Instruments PLUS TI-89 - Manual (Page 515)

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
Shade cos(x),sin(x),0,5 ¸
TI-89: "
TI-92 Plus: ¥ "
ClrDraw ¸ Done
Shade cos(x),sin(x),0,5,2 ¸
TI-89: "
TI-92 Plus: ¥ "
ClrDraw ¸ Done
Shade cos(x),sin(x),0,5,2,1
¸