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SHIFT
Cls
EXE
0.25
(
Graph
ALPHA
2
(
ALPHA
X
-
ALPHA
X
2
Graph
ALPHA
Press
to return the graph to
SHIFT Zoom Org
its original position after scroll operations.
3.3 SOME GRAPHING EXAMPLES
The following examples are presented to show you some ways that the graphing functions can be used
effectively.
Example 1: to graph the function y=x
Use the following range parameters.
Xmin
:
-5
Xmax
:
10
Xscl
:
2
SHIFT
Cls
EXE
Graph
ALPHA
X
9
ALPHA
X
x
27
+
ALPHA
X
Example 2: To graph the function y=x
Use the following range parameters.
Xmin
:
-10
Xmax
:
10
Xscl
:
2
SHIFT
Cls
EXE
Graph
ALPHA
X
4
ALPHA
X
x
36
ALPHA
X
+
ALPHA
X
4 PROGRAM CALCULATIONS
4.1 WHAT IS A PROGRAM?
This unit has a built-in program feature that facilitates repeat calculations. The program feature is used for the conse-
cutive execution of formulas in the same way as the "multi-statement" feature is used in manual calculations.
Programs will be discussed here with the aid of illustrative examples.
Example: Find the surface area and volume of a regular octahedron when the length of one side is given.
Length of one side (A)
10 cm
15
*** Fill in the parentheses.
Copyright L
2002
EXIBOOK
2
)
+
X
ALPHA
1
2
)
(
+
5
)
:
3
-
X
EXE
-9x
+27x+50
3
2
Ymin
:
-30
Ymax
:
150
Yscl
:
20
3
-
x
y
2
+
50
EXE
+4x
-36x
-160x+300
4
3
2
Ymin
:
-600
Ymax
:
600
Yscl
:
200
4
+
x
y
3
-
y
160
x
y
-
300
EXE
Surface area (S)
(
) cm
7
(
)
(
)
Volume (V)
(
) cm
2
3
(
)
(
)
- 47 -
GB
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