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Ex, 8
Conversion of power amplification into decibels
(Formula:)
Power amplification = 10 log
p
2
[dB]
Steps
Pi = 100W, P2 = 200W
Operation
2000100 gjTjg:
010 0
Display
0.30103
3.0103
Acs.
Nate
i
PH
^ i « >
log P2/Pi
10 log
PoJPi
r^.*-
Correcting mistakes .When a wrong number is entered, press the @) key
to clear the entry and enter the correct number.
Ex. 1
Ex. 2
123 + 455 (mistake)_
123 0 455 @4560579.
^-misoperation
456 * 469 (mistake)
456 0 469 @369 0168264.
456 (correct)
369 (correct)
4_
misoperation
14
Four arithmetic calculation
Algebraic key operation
Easy operation, the way you see the formula written.
Therefore constant and power calculation are possible without constant mode.
Constant calculation
In multiplication, the first entry (multiplicand) becomes constant. While
in division, addition and subtraction, the second entry number becomes
constant.
Accuracy
a)
In four arithmetic calculations, reciprocal calculation and square root
extraction, the significant figure is 8 digits.
b)
In specific functions (except square root extraction), the significant
figure is 6 digits provided that the entered number satisfies the con¬
ditions shown at the end of this manual.
(That is, an error of ±1 takes place at the 6th digit.)
Memory calculation
0 key: Adds the displayed number to the memory register.
The
numbers
in
the display
and
calculation
registers
remain
unchanged even after the @ key operation.
000 and0 keys are also effective even after0 key operation.
1S
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