Section 3: The Memory Stack, LAST X, and Data Storage 45
Example: Keep a running count of your newly blooming crocuses for two
more days.
8 O 0
8.0000
Places the total number of blooms as
of day 2 in R
0
.
4 O + 0
4.0000
Day 3: adds four new blooms to those
already blooming.
3 O + 0
3.0000
Day 4: adds three new blooms.
24 l - 0
9.0000
Subtracts total number of blooms
summed in R
0
(15) from the total
number of plants (24): 9 crocuses
have not bloomed.
l 0
15.0000
(The number in R
0
does not change.)
Overflow and Underflow
If an attempted storage or recall arithmetic operation would result in
overflow in a data storage register, the value in the affected register will
be replaced with ± 9.999999999 × 10
99
and the display will blink. To stop
the blinking (clear the overflow condition), press − or = or | "
9.
In case of underflow, the value in the register will be replaced with zero
(no display blinking). Overflow and underflow are discussed further on
page 61.
Problems
x =
8.33
4
−
5.2
÷
8.33
−
7.46
0.32
4.3
3.15−2.75
−1.712.01
Answer: 4.5728.
A possible keystroke solution is:
4 v 5.2 - 8.33 * | K 7.46 - 0.32
* ÷ 3.15 v 2.75 - 4.3 * 1.71 v
2.01 * - ÷ ¤
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