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Recall Arithmetic - HP 35s User Manual

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A
T
Z
Y
X

Recall Arithmetic

Recall arithmetic uses
in the X–register using a recalled number and to leave the result in the display. Only
the X–register is affected. The value in the variable remains the same and the result
replaces the value in the x-register.
New x = Previous x {+, –, , } Variable
For example, suppose you want to divide the number in the X–register (3, displayed)
by the value in A(12). Press
Recall arithmetic saves memory in programs: using
uses half as much memory as
A
T
Z
Y
X
15
t
z
y
3
A


,
 
12
t
z
y
3
A
12
A
T
Z
Y
X

,
, or
A. Now x = 0.25, while 12 is still in A.
 
A,
(two instructions).
12
A
T
Z
Y
0.25
X
Storing Data into Variables
Result: 15 – 3
that is, A – x
t
z
y
3

to do arithmetic
A (one instruction)
t
z
y
Result: 3
that is, x
12
12
3-7

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