Texas Instruments TI-30XIIB Owners Manual - Page 19

Combining, Operations

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The §111 key in the table indicates that the incorrect entry cannot safely be corrected to the desired operation for all conditions so the problem must be restyled. Example: 6./ x 7 4 + 03 = 45 Enter 6 7 4 3 Press E1-] [Xi 0El'71 *CI Display 6. 42. 0. 45. Comments First operation wrong 6 x 7 Completed Clears 4 (entry) Answer A full understanding of the calculator hierarchy discussed in the next few pages will make the input error correction methods obvious. Combining Operations After a result is obtained in one calculation it may be directly used as the first number in a second calculation. There is no need to reenter the number from the keyboard. Example: 1 84 + 0.39 = 223 then (1 84 + 0.39)/365 = .00610959 Enter 1.84 Press Q Display 184 Comments .39 [±3 365 n 2.23 2.23 00610959 1.84 0.39 2.23 + 365 17

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The
§111
key
in
the
table
indicates
that
the
incorrect
entry
cannot
safely
be
corrected
to
the
desired
operation
for
all
conditions
so
the
problem
must
be
restyled.
Example:
6./
x
7
4
+
03
=
45
Enter
Press
Display
Comments
6
E1-]
[Xi
6.
First
operation
wrong
7
0El'71
42.
6
x
7
Completed
4
*CI
0.
Clears
4
(entry)
3
45.
Answer
A
full
understanding
of
the
calculator
hierarchy
discussed
in
the
next
few
pages
will
make
the
input
error
correction
methods
obvious.
Combining
Operations
After
a
result
is
obtained
in
one
calculation
it
may
be
directly
used
as
the
first
number
in
a
second
calculation.
There
is
no
need
to
reenter
the
number
from
the
keyboard.
Example:
1
84
+
0.39
=
223
then
(1
84
+
0.39)/365
Enter
Press
Display
=
.00610959
Comments
1.84
Q
184
.39
2.23
1.84
0.39
[±3
2.23
365
n
00610959
2.23
+
365
17