Texas Instruments TI-30XIIB Owners Manual - Page 39

=71*i-ill

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You can see that by storing x the first time it is entered saved you from having to spend 15 more keystrokes to key in x the other two times it is needed. A single press of the [OLGA key brings the eight digit x to the display each time. Notice also that the use of riq and lett.' did not interfere with calculator operations. Sum to Memory The Sum to Memory key P.A algebraically adds the display value to the memory content. This key does not affect the displayed number or calculations in progress. Important: The clear key ki*Ij does not clear memory except when the calculator is first turned on. Therefore the first quantity should be stored using PTA. or a zero should be stored to ensure the memory is empty before using This key is used to accumulate the results from a series PIA of independent calculations. replaces the arithmetic sequenceI-41 raToj. Example: 28 3 x 7 = 198.1 173 + 16 - 189 312 - 42 + 7 8 - 277 8 Total 664 9 Enter 28 3 7 173 16 312 42 7.8 Press [X] El [ O] ED [ki- EMI L±3 [7=71*i-ill qctj Display 28 3 198.1 173. 189. 312 270. 277.8 664 9 Memory 0. 198 1 198 1 387.1 387.1 387.1 664 9 664 9 37

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You
can
see
that
by
storing
x
the
first
time
it
is
entered
saved
you
from
having
to
spend
15
more
keystrokes
to
key
in
x
the
other
two
times
it
is
needed.
A
single
press
of
the
[OLGA
key
brings
the
eight
digit
x
to
the
display
each
time.
Notice
also
that
the
use
of
riq
and
lett.'
did
not
interfere
with
calculator
operations.
Sum
to
Memory
The
Sum
to
Memory
key
P.A
algebraically
adds
the
display
value
to
the
memory
content.
This
key
does
not
affect
the
displayed
number
or
calculations
in
progress.
Important:
The
clear
key
ki*Ij
does
not
clear
memory
except
when
the
calculator
is
first
turned
on.
Therefore
the
first
quantity
should
be
stored
using
PTA.
or
a
zero
should
be
stored
to
ensure
the
memory
is
empty
before
using
This
key
is
used
to
accumulate
the
results
from
a
series
of
independent
calculations.
PIA
replaces
the
arithmetic
sequence
I
-
41
raToj.
Example:
28
3
x
7
=
198.1
173
+
16
-
189
312
-
42
+
7
8
-
277 8
Total
664
9
Enter
Press
Display
Memory
28
3
[X]
28
3
0.
7
El
[
O]
198.1
198
1
173
ED
173.
198
1
16
[ki-
EMI
189.
387.1
312
312
387.1
42
L±3
270.
387.1
7.8
[7=71*i-ill
277.8
664
9
qctj
664
9
664
9
37