Texas Instruments Voyage 200, User Manual

Page: 871 / 1008

Appendix A: Functions and Instructions 873
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)
¸
¥
"
ClrDraw
¸
Done
Shade cos(x),sin(x),0,5
¸
¥
"
ClrDraw
¸
Done
Shade cos(x),sin(x),0,5,2
¸
¥
"
ClrDraw
¸
Done
Shade cos(x),sin(x),0,5,2,1
¸