Performing Complex Number Calculations - Casio FX-9750G PLUS User's Manual & Technical Reference

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
Arithmetic operations are the same as those you use for manual calculations. You
can even use parentheses and memory.
k k k k k Reciprocals, Square Roots, and Squares
k k k k k Absolute Value and Argument
The unit regards a complex number in the form
Gaussian plane, and calculates absolute value Z and argument (arg).
(1 + 2i) + (2 + 3i)
Example 1
AK3(CPLX)
(b+c1(
+(c+d1(
(2 + i) × (2 – i)
Example 2
AK3(CPLX)
(c+1(
*(c-1(
(3 + i)
Example
AK3(CPLX)
!9(d+1(
Example To calculate absolute value (
complex number 3 + 4
i
))
i
))w
i
))
i
))w
i
))w
i
, with the angle unit set for degrees
Imaginary axis
[OPTN]-[CPLX]-[i]
[OPTN]-[CPLX]-[Abs]/[Arg]
a bi
+ as a coordinate on a
r ) and argument ( θ ) for the
Real axis
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