Casio fx-50F Complex Number Calculations (CMPLX), kInputting Complex Numbers, kComplex Number Calculation Result Display, Format, AInputting Imaginary Numbers (i)

Complex Number Calculations (CMPLX)

To perform the example operations in this section, first select CMPLX (N2) as the calculation mode.

kInputting Complex Numbers

AInputting Imaginary Numbers (i)

In the CMPLX Mode, the W key is used to input the imaginary number i. Use W(i) when inputting complex numbers using rectangular coordinate format (a+bi).

Example: To input 2 + 3i

2+3W(i) 2+3 iI

A Inputting Complex Number Values Using Polar Coordinate

Format

Complex numbers can also be input using polar coordinate format (r ∠ Ƨ). Example: To input 5 ∠ 30

51-(∠)30 530I

Important!

When inputting argument Ƨ, enter a value that indicates an angle in accordance with the calculator’s current default angle unit setting.

kComplex Number Calculation Result Display

When a calculation produces a complex number result, R⇔I symbol turns on in the upper right corner of the display and the only the real part appears at first. To toggle the display between the real part and the imaginary part, press 1E(Re⇔Im).

Example: To input 2 + 1i and display its calculation result

Before starting the calculation, you need to perform the following operation to change the complex number display setting to “a+bi” as shown below.

To select rectangular coordinate format: 1,(SETUP)eee1(a+bi)

2+W(i)E	2+ i
	2

Displays real part.

E-34