Sharp OZ-707 Operation Manual - Page 12

Compound Calculations and Parentheses, Recalling Entries

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Example: 5 x (-6) + 7 = 500 B 6 [±] 7 IENTER I 14 In the RUN mode, the IENTER I key must be pressed to obtain the calculated result instead of the I = I key. The Organizer display consists of 8 lines (16 characters per line). Key entries and calculated results are displayed from the top line of the display. If the characters to be displayed exceed 8 lines, the displayed contents will be moved up by 1 line (the first line will move off the top of the display). Compound Calculations and Parentheses You can combine several operations into one step. For example, you may enter: 675 + 6750/45000 Compound calculations, however, must be entered very carefully to avoid ambiguity. When performing compound calculations, the Card has specific rules of expression evaluation and operator priority (see page 28). Use parentheses to clarify your expressions: (675 + 6750)/45000 or 675 + (6750/45000) Recalling Entries Even after the Card has displayed the results of your calculation, you can verify that the entry was made correctly, and edit it if necessary. To edit, use the left arrow ~ and right arrow ~ keys. Use the left arrow ~ key to position the cursor after the last character. Use the right arrow [E] key to position the cursor over the first character. 12 Remember that the left and right arrows are also used to position the c~rsor. The. right and left arrows are very helpful in editing entries without haVing to retype the entire expression. 300 I : 16 IENTER I r 88 6 50 Change this f'\l"eration to 300/5. Recall your laJt entry using the [3J key. ~ 58 Bec.~use you recalled the expression using f f i , the cursor is f f i positioned at the end of the display. Use to move the cursor one space to the left. ~ 58 Notice that after yo.~ move the cursor, it becomes a flashing block. Whenever you position the cursor over an existing character it will flash. ' Enter a 5 to rep/ace the 6. An important point in replacing characters ~ ~nce. you enter a new character over an existing character, the onglnalls gone forever! You cannot recall an expression that has been erased. 51 ENTER I 50 68 13

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Example:
5
x
(-6)
+
7
=
500
B
6
[±]
7
I
ENTER
I
In the RUN mode, the
I
ENTER
I
key must be pressed to obtain the
calculated result instead of the
I
=
I
key.
14
The
Organizer display consists of 8 lines (16 characters
per
line). Key
entries and calculated results are displayed from the top line
of
the
display. If the characters to
be
displayed exceed
8
lines, the displayed
contents will be moved up by
1
line (the first line will move off the top
of
the display).
Compound Calculations and Parentheses
You can combine several operations into one step. For example, you
may
enter:
675
+
6750/45000
Compound calculations, however, must be entered very carefully to
avoid ambiguity.
When
performing compound calculations, the Card
has specific rules
of
expression evaluation and operator priority (see
page
28).
Use parentheses to clarify
your
expressions:
(675
+
6750)/45000
or
675
+
(6750/45000)
Recalling Entries
Even after the Card has displayed the results
of
your calculation, you
can verify that the entry was made correctly, and edit it if necessary.
To
edit, use the left arrow
~
and right arrow
~
keys.
Use the left arrow
~
key to position the cursor after the last
character. Use the right arrow
[E]
key to position the cursor over the
first character.
12
Remember that the left and right arrows are also used to position the
c~rsor.
The. right and left arrows are very helpful in editing entries
without haVing to retype the entire expression.
300
I :
16
I
ENTER
I
r-:-
...
8
-
8
-/-
6
------...
50
Change this f'\l"eration to
300/5.
Recall your laJt entry using the
[3J
key.
~
58
Bec.~use
you recalled the expression using
ffi
,
the cursor is
positioned at the end
of
the display. Use
ffi
to move the cursor one
space to the left.
~
Notice that after
yo.~
move the cursor, it becomes a flashing block.
Whenever
you position the cursor
over
an existing character it will
flash.
'
58
Enter
a 5 to rep/ace the 6. An important point
in
replacing characters
~
~nce.
you enter a new character over an existing character, the
onglnalls
gone forever! You cannot recall an expression that has been
erased.
51
ENTER
I
13
50
68