HP 48gII Graphing Calculator Manual do Utilizador descarregar pdf (Página 167)

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

CMPLX menu through the MTH menu

Assuming that system flag 117 is set to CHOOSE boxes (see Chapter 2),

the CMPLX sub-menu within the MTH menu is accessed by using:

„´9 @@OK@@ . The following sequence of screen shots illustrates these

The first menu (options 1 through 6) shows the following functions:

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HP 48gII Graphing Calculator Manual do Utilizador Página 167