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3) Program editing
First, a comparison of the two programs would be helpful.
→
Octahedron:
ALPHA
?
÷
√
2
→
Tetrahedron:
ALPHA
?
÷
√
2
4) The octahedron program can be changed to a tetrahedron program by deleting the parts marked with wavy
lines, and changing those that are marked with straight lines.
In actual practice, this would be performed as follows:
2
MODE
EXE
EXE
EXE
DEL DEL
x 9 times
SHIFT
Ins
1
2
SHIFT
Ins
DEL
MODE
1
5) Program execution
Now this program will be executed.
Length of one side (A)
10 cm
7.5
20
MODE
1
Prog
0
EXE
1
0
EXE
EXE
Prog
0
EXE
.
7
5
EXE
EXE
Copyright L
2002
EXIBOOK
2
√
:
ALPHA
A
x
3
3
x
ALPHA
A
x
y
3
√
:
x
ALPHA
A
12
3
x
ALPHA
A
x
y
WRT
380
P_123456789
WRT
000
?_A:2x√3xA
2
WRT
004
?
→A:√3xA
√2
2
WRT
015
√3xA
√2÷123
2
WRT
015
√3xA
√2÷12x
2
_
Surface area (S)
(173.2050808 ) cm
(97.42785793 )
(692.820323)
_
?
173.2050808
117.8511302
?
97.42785793
49.71844555
3
x
ALPHA
A
x
2
ALPHA
ALPHA
A
x
2
ALPHA
Cursor located at beginning.
Press
to bring cursor
SHIFT
DEL
to end
Locate cursor at position to be
delete. And delete two characters.
Insert two characters.
Delete unnecessary 3.
Editing complete.
Return to the RUN mode.
Volume (V)
(117.8511302) cm
2
3
(49.71844555)
(942.8090416)
- 51 -
GB
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