Hp 50g Graphing Calculator Manual do Utilizador descarregar pdf (Página 172)

Changing sign of a complex number

Changing the sign of a complex number can be accomplished by using the

\ key, e.g., -(5-3i) = -5 + 3i

Entering the unit imaginary number

To enter the unit imaginary number type : „¥

Notice that the number i is entered as the ordered pair (0,1) if the CAS is set to

APPROX mode. In EXACT mode, the unit imaginary number is entered as i.

Other operations

Operations such as magnitude, argument, real and imaginary parts, and

complex conjugate are available through the CMPLX menus detailed later.

The CMPLX menus

There are two CMPLX (CoMPLeX numbers) menus available in the calculator.

One is available through the MTH menu (introduced in Chapter 3) and one

directly into the keyboard (‚ß). The two CMPLX menus are presented

Thus, the inverse function INV (activated with the Y key) is defined as

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Hp 50g Graphing Calculator Manual do Utilizador Página 172