Casio ALGEBRA FX 2.0, User Manual

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19990401
2-6-2
Complex Number Calculations
k k
k k k
Absolute Value and Argument
[OPTN] - [CPLX] - [Abs] / [Arg]
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 (
!
) for the complex
number 3 + 4
i
, with the angle unit set for degrees
A K 3
(CPLX)
b
(Abs)
(d+e ! a
(
i
)
) w
(Calculation of absolute value)
A
K
3
(CPLX)
c
(Arg)
(d+e ! a
(
i
)
) w
(Calculation of argument)
# The result of the argument calculation differs
in accordance with the current angle unit
setting (degrees, radians, grads).
Imaginary number axis
Real number axis