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OPERATING CONTROLS AND THEIR USE
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NEGATIVE VALUES
With the exception of the memory register, the 770 follows
the rules governing algebraic sign in all cases, A negative
number is entered by depressing the - key before setting
the number. For example:
12
X
-6
-72
Set 12..... Depress x
Depress -
Set 6 ....... Depress
=
Read -72
Product in display
A negative total recalled from storage retains its negative
sign and affects the calculations accordingly.
When a value is placed in the memory register, it loses its
algebraic sign and retains only its absolute value.
NEGATIVE LIGHT
A negative product is identified by the amber negative light.
11
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