19990401
Example 1 To calculate the surface area (cm
2
) and volume (cm
3
) of three regular
octahedrons when the length of one side is 7, 10, and 15 cm
Store the calculation formula under the file name OCTA.
A
The following are the formulas used for calculating surface area S
and volume V of a regular octahedron for which the length of one side
A is known.
Procedure
1
m
PRGM
2
3
(NEW)
OCTA
w
*
1
3
!
J
(PRGM)
3
(?)
a
av
(A)
6
(
g
)
6
(
g
)
3
(:)*
2
c*
!x
(
)
d*
av
(A)
x6
(
g
)
4
(
^
)
!x
(
)
c/d*
av
(A)
M
d
ii
4
1
(EXE) or
w
h
w
(Value of A)
w
w
w
ba
w
w
w
w
bf
w
w
*
3
8-1-2
Basic Programming Steps
2
S = 2 3 A
2
, V = –––– A
3
3
*
1
Press
3
(NEW) and the cursor changes form
to indicate alpha character input.
*
2
The following shows how the calculation of the
surface area and volume of a regular
octahedron would be calculated using a
manual calculation.
Surface Area S ...
c*
!x
(
)
d*
<value of A>
xw
Volume V ............
!x
(
)
c/d*
<value of A>
M
d
w
*
3
Pressing
w
while the final result of a program
is on the display changes to the program list.
# You can also run a program while in the
RUN
•
MAT Mode
by inputting: Prog ”<file name>”
w
.
# Pressing
w
while the final result of a program
executed using this method is on the display
re-executes the program.
# An error occurs if the program specified by Prog
”<file name>” cannot be found.
S when A = 7
V when A = 7
S when A = 10
V when A = 10
S when A = 15
V when A = 15
Summary of Contents for ALGEBRA FX 2.0
Page 1: ... ALGEBRA FX 2 0 User s Guide ...
Page 19: ...19990401 ALGEBRA FX 2 0 ...
Page 26: ...19990401 1 1 Keys 1 1 1 Keys REPLAY COPY PASTE CAT CAL H COPY PRGM List Mat i ...
Page 122: ...19990401 ...
Page 280: ...19990401 ...
Page 310: ...19990401 ...
Page 358: ...19990401 8 8 2 Program Library egcw w ww w ...
Page 360: ...19990401 8 8 4 Program Library Example 1 Example 2 fw baw bf w fw baw ca w ...
Page 362: ...19990401 8 8 6 Program Library ...
Page 364: ...19990401 8 8 8 Program Library dw fcde wfcde wfcde fcde w daw w ...
Page 366: ...19990401 8 8 10 Program Library b awaw bwaw aw9d w ...
Page 423: ...19981001 MEMO ...
Page 424: ...19981001 MEMO ...
Page 425: ...19981001 MEMO ...