Casio fx-9750G Complex Numbers User Manual
Page 4
82
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Absolute Value and Argument
The unit regards a complex number in the format Z =
a
+
bi
as a coordinate on a
Gaussian plane, and calculates absolute value Z and argument (arg).
Example
To calculate absolute value (
r
) and argument (
θ
) for the complex
number 3 + 4
i
, with the angle unit set for degrees
A
K3
(CPLX)
2
(Abs)
(d+e1
(
i
)
)w
(Calculation of absolute value)
A
K3
(CPLX)
3
(Arg)
(d+e1
(
i
)
)w
(Calculation of argument)
• The result of the argument calculation differs in accordance with the current an-
gle unit setting (degrees, radians, grads).
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Conjugate Complex Numbers
A complex number of the format
a + bi
becomes a conjugate complex number of the
format
a – bi
.
Example
To calculate the conjugate complex number for the complex
number
2 + 4
i
A
K3
(CPLX)
4
(Conj)
(c+e1
(
i
)
)w
Imaginary Number Axis
Real Number Axis
4 - 2
Performing Complex Number Calculations
1 2
3 4 5 6
1
2
3
4 5 6
1
2 3
4
5 6