Casio fx-9750G PLUS - Manual (Page 97)

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 + 2i) + (2 + 3i)
A K3 (CPLX)
(b+c1 ( i ))
+(c+d1 ( i ))w
Example 2 (2 + i) × (2 – i)
A K3 (CPLX)
(c+1 ( i ))
*(c-1 ( i ))w
k k k k k
Reciprocals, Square Roots, and Squares
Example (3 + i)
A K3 (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