Casio fx-9750G Complex Numbers - Manual (Page 4)

82
k k k k k Absolute Value and Argument
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 (
θ
) for the complex
number 3 + 4 i , with the angle unit set for degrees
A
K3
(CPLX) 2 (Abs)
(d+e1 ( i ) )w
(Calculation of absolute value)
A
K3
(CPLX) 3 (Arg)
(d+e1 ( i ) )w
(Calculation of argument)
• The result of the argument calculation differs in accordance with the current an-
gle unit setting (degrees, radians, grads).
k k k k k Conjugate Complex Numbers
A complex number of the format a + bi becomes a conjugate complex number of the
format a – bi .
Example To calculate the conjugate complex number for the complex
number
2 + 4 i
A
K3
(CPLX) 4 (Conj)
(c+e1 ( i ) )w
Imaginary Number Axis
Real Number Axis
4 - 2
Performing Complex Number Calculations
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6