Texas Instruments TI-80 User Manual - Page 106
Getting Started: Shading a Graph
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Getting Started: Shading a Graph Getting Started is a fast-paced introduction. Read the chapter for details. Shade the area below the function Y=XäN2 and above the functions Y=X+1 and Y=-X. 1. If necessary, select FUNC mode. Press ( and enter the functions: Y1= @ a | 2 ¸ Y2= @ « 1 ¸ Y3= · @ ¸ (Be sure that Y4 is cleared or turned off.) 2. Press * 4 to select the ZDECIMAL viewing window, clear any existing drawings, and display the viewing window and graph. 3. Press 2 . to return to the Home screen. 4. Press 2 F 7 to select SHADE_Y, which is copied to the Home screen. 8. Press 2 G 2 (to select Y2) b 2 G 3 (to select Y3). 9. Press ¸ to see the functions and shading on the graph. 7-2 Draw Operations
7-2
Draw Operations
Getting Started is a fast-paced introduction. Read the chapter for details.
Shade the area below the function Y=X
ä
N
2 and above the functions Y=X
+
1 and
Y=
-
X.
1.
If necessary, select
FUNC
mode. Press
(
and enter
the functions:
Y1=
@
a
|
2
¸
Y2=
@
«
1
¸
Y3=
·
@
¸
(Be sure that
Y4
is cleared or turned off.)
2.
Press
*
4
to select the
ZDECIMAL
viewing
window, clear any existing drawings, and display the
viewing window and graph.
3.
Press
2
.
to return to the Home screen.
4.
Press
2
F
7
to select
SHADE_Y<
, which is
copied to the Home screen.
5.
Press
2
G
1
(to select
Y1
).
6.
Press
2
°
to add another instruction to this line.
7.
Press
2
F
6
to select
SHADE_Y>
, which is
copied to the Home screen.
8.
Press
2
G
2
(to select
Y2
)
b
2
G
3
(to
select
Y3
).
9.
Press
¸
to see the functions and shading on the
graph.
Getting Started: Shading a Graph