Casio CFX-9850G PLUS, User'S Manual & Technical Reference

Page: 97 / 486

69
4-2 Performing Complex Number Calculations
The following examples show how to perform each of the complex number
calculations available with this calculator.
k k k k k
Arithmetic Operations
[OPTN]
-
[CPLX]
-
[
i
]
Arithmetic operations are the same as those you use for manual calculations. You
can even use parentheses and memory.
Example 1
(1 + 2
i
) + (2 + 3
i
)
A K 3
(CPLX)
(b+c 1
(
i
)
)
+(c+d 1
(
i
)
) w
Example 2
(2 + i )
×
(2 – i )
A K 3
(CPLX)
(c+ 1
(
i
)
)
*(c- 1
(
i
)
) w
k k
k k k
Reciprocals, Square Roots, and Squares
Example
(3 +
i
)
A K 3
(CPLX)
!9 (d+ 1
(
i
)
) w
k k k k k
Absolute Value and Argument
[OPTN] - [CPLX] - [Abs] / [Arg]
The unit regards a complex number in the form
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
Imaginary axis
Real axis