Casio fx-100AU PLUS User Manual download pdf (Page 22)

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Complex numbers

Mode: 2 CMPLX

Method: Press qb to enter

Examples

The screen below shows other possibilities in the complex number mode

Calculating the argument of a complex number

Expressing a number in a + ib form in mod-arg form

The button sequence for expressing 5 + 2i in mod-arg form is 5+2qbq23=.

Expressing a number in mod-arg form in the form of a + ib.

The button sequence for determining the

argument of 5 + 2i is

q215+2qb=.

The button sequence for expressing 5 + 2i

in mod-arg form is

5+2qbq23=.

The button sequence for

these calculations is

intuitive.

The button sequence for expressing 5cis(pi/4) in the

form a + ib is

5qzaqKR4$q24=

1 2 ... 17 18 19 20 21 22 23 24

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Casio fx-100AU PLUS User Manual Page 22