Complex Number Calculations (Cmplx) - Casio fx-100MS User Manual

Complex Number Calculations
(CMPLX)
To perform complex number calculations, first press N2(CMPLX)
to enter the CMPLX Mode. You can use either rectangular coordinates
a b i
( + ) or polar coordinates (
number calculation results are displayed in accordance with the
complex number format setting on the setup menu.
i
(2 + 6 ) ÷ (2
( 2 + 6 W(
' 2 ∠ 45 = 1+
• You can use variables A, B, C, and M only in the CMPLX Mode.
Variables D, E, F, X, and Y are used by the calculator, which
frequently changes their values. You should not use these variables
in your expressions.
• The indicator "Re ⇔ lm" is displayed while a complex number
calculation is on the display. Press 1=(Re ⇔ lm) to toggle the
display between the real part (
absolute value (
• If you are planning to perform input and display of the calculation
result in polar coordinate format, specify the angle unit before starting
the calculation.
• The value of the calculation result is displayed in the range of
–180°
CMPLX Mode Calculation Examples
To obtain the conjugate complex number of 2 + 3
number format:
1,(Conjg) ( 2 + 3 W(
To obtain the absolute value and argument of 1 +
Absolute Value:
1)(Abs) ( 1 +W(
Argument:
1((arg) ( 1 +W(
Using a Command to Specify the Calculation
Result Format
Either of two special commands ( '
the end of a calculation to specify the display format of the calculation
∠ ) to input complex numbers. Complex
r
i i
) = 3 – (Complex number format:
) )/( 2 W(
i
1=(Re ⇔ Im)
v (Complex number format:
i
1 2 1-( ∠ ) 45 =
1=(Re ⇔ Im)
r
) and argument ( ).
180°.
a b i
+ )
1=(Re ⇔ Im)
) )=
i
a
) and imaginary part (
) )=
i
) )=
i
) )=
i
∠ or '
r
E-15
a b i
+ )
Real part
Imaginary part
a b i
+ )
Real part
Imaginary part
b
), and the
i
(Complex
Real part
Imaginary part
v
i
1.414213562
a b i
+ ) can be input at
= 3
i
= −
= 1
i
=
= 2
i
= −3
45.