Texas Instruments TI-30XIIB Owners Manual - Page 24

Texas Instruments TI-30XIIB Manual

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Example: 5 • (8/(9 (2/3))) 596 Enter Press Display Comments En En 8 [:=7 1 ( 1 5. (5+) stored 8. (3+) stored 9 E=1L7 9. (9 -) stored 2 m 2 (2 ) stored 3 n .66666667 (2/3) evaluated [=:1 8.3333333 (9 (2/3)) evaluated 0.96 (8/(9 - (2/3))) , 596 5 + (8/(9 - (2/3))) Because the r---1 key has the capability to complete all Incomplete operations whenever it is used it could have been used here instead of the three working this problem again arid pressing keys. Try ET) instead of the first]. Each time a closed parenthesis is encountered, the contents are evaluated back to the nearest open parenthesis and are replaced with a single value. Knowing this you can structure the order of interpretation for whatever purpose you may want. Specifically, you can check intermediate results. Example: 3 x (442-(" 7)))= 4.7000434 Enter Press Display 0*1 0. 3 Ei -4111. 3. 4 ["L13 4. 2 M 2. 7 LleJ 4 F 11 7. 1 6265766 Ei•E- -1 6265766 Di En .32385579 1 5666811 [J 4.7000434 Comments 'V.7 -(t4) 2-O,r 7) 4 3 x 4" 3• Note that in all these examples, the expressions are entered in a straight left to right sequence. 22

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Example:
5
•
(8/(9
(2/3)))
Enter
Press
Display
En En
5.
8
[:=7
1
(
1
8.
9
E=1
L7
9.
2
m
2
3
n
.66666667
[=:1
8.3333333
0.96
,
596
Because
the
r
---
1
key
has
the
capability
to
complete
all
Incomplete
operations
whenever
it
is
used
it
could
have
been
used
here
instead
of
the
three
keys.
Try
working
this
problem
again
arid
pressing
ET)
instead
of
the
first].
Each
time
a
closed
parenthesis
is
encountered,
the
contents
are
evaluated
back
to
the
nearest
open
parenthesis
and
are
replaced
with
a
single
value.
Knowing
this
you
can
structure
the
order
of
interpretation
for
whatever
purpose
you
may
want.
Specifically,
you
can
check
intermediate
results.
Example:
3
x
(44
2-(
"
7)
))=
4.7000434
Enter
Press
Display
Comments
0*1
0.
3
Ei
-41.
11
3.
4
["L13
4.
2
M
2.
7
le
LJ
7.
4
F
11
1
6265766
‘V
.
7
Ei•E-
—1
6265766
—(t4)
Di
.32385579
2
—
O
,
r
7
)
En
1
5666811
4
"'•
• •
[J
4.7000434
3
x
4
"
3
•
Note
that
in
all
these
examples,
the
expressions
are
entered
in
a
straight
left
to
right
sequence.
596
Comments
(5+)
stored
(3+)
stored
(9
-)
stored
(2
)
stored
(2/3)
evaluated
(9
(2/3))
evaluated
(8/(9
—
(2/3)))
5
+
(8/(9
—
(2/3)))
22