Casio SERIES FX-9860G - Manual (Page 113)

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2-6-3
Complex Number Calculations
# The result of the argument calculation differs
in accordance with the current angle unit
setting (degrees, radians, grads).
k Absolute Value and Argument
[OPTN]-[CPLX]-[Abs]/[Arg]
The unit regards a complex number in the form a + b i as a coordinate on a Gaussian plane,
and calculates absolute value ⎮ Z⎮ and argument (arg).
Example To calculate absolute value ( r ) and argument ( Ƨ) for the complex
number 3 + 4 i , with the angle unit set for degrees
Imaginary axis
Real axis
AK3(CPLX)2(Abs)
(d+e1(
i )) w
(Calculation of absolute value)
AK3(CPLX)3(Arg)
(d+e1(
i )) w
(Calculation of argument)
k Conjugate Complex Numbers
[OPTN]-[CPLX]-[Conj]
A complex number of the form a + b i becomes a conjugate complex number of the form
a – b i .
Example To calculate the conjugate complex number for the complex number 2
+ 4
i
AK3(CPLX)4(Conj)
(c+e1(
i )) w