OTRONA ATTACHE Series Manual page 47

calculator
Storing Nmnbers
.in .the
~
Registers
The memory registers provide a convenient permanent storage area for
retaining constants that are used frequently and for temporarily storing
numbers that will be used again in the same session with the calculator.
Numbers may be copied from the X Register to any of the eight memory
registers on the right side of the display by pressing the
S
key. The
display will prompt
STORE
when S is pressed. Type the number of the
register to copy to (1 to 8) and the value is copied to that register.
Figures stored in registers one through four are automatically cleared
when you exit from the calculator. Figures stored in registers five
through eight are permanently stored until another entry is stored in the
same register.
Storing an entry in a register that already has numbers stored in it
results in the new entry overwriting the old entry.
Recalling Numbers
.l'IoJD .the
~
Registers
Numbers may be copied from any of the eight memory registers to the X
Register by pressing the R key. The display will prompt
RECALL
when R is
pressed. Type the number of the register to recall (1 to 8) and the
I
value is retrieved from that register.
The value that is recalled will be stored in the X Register, and the
value that was previously stored in the X Register (if any) will be
bumped to the Y Regi ster.
For complex problems with brackets inside of brackets, a good rule of
thumb is to work from the innermost brackets first, just as you would if
working the problem manually.
Negative Nmnbers
To type a negative number, enter the number and then press the N key.
The number is changed to a negative number on the display. Pressing N
again changes the number back to positive.
This feature can be used to change either the current entry or the value
that is stored in the X Register. You can change the sign of either a
negative or positive number on the display at any time. N may also be
used to negate the exponent in scientific notation.
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