Table of Contents
Advertisement
68
The Automatic Memory Stack
In the above example, when the first £ is pressed, followed by
@ (tsTx), the contents of the stack and LAST X registers are
changed...
...fromthis...
...tothis...
...to this.
T
0.00
T
0.00
T
[0.00
Z
0.00
Z
000
Z
0.00
Y
12.00
Y
0.00
Y
3.80
X
|3157
B
X
[3.80
0
X
3.16
S LasTx _/
This makes possible the correction illustrated in the example above.
Recovering a Number for Calculation
The LAST X registeris useful in calculations where a number occurs
more than once. By recovering a number using (LSTx], you do not
have to key that number into the calculator again.
Example: Calculate
7.32 + 3.650112331
3.650112331
Press
Display
7.32
ENED
3.650112331
Intermediate answer.
0 Gx
Recalls 3.650112331 to
X-register.
8
3.01
The answer.
Constant Arithmetic
You may have noticed that whenever the stack drops because of a
two-number operation (not because of (R¥)), the number in the
T-register is reproduced there. This stack operation can be used to
insert a constant into a problem.
Advertisement
Table of Contents
