Casio ClassPad 330, User Manual

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S Cla ss Pad Operation
(1) On the application menu, tap
&
.
• This starts up the System application.
(2) Tap [System] and then [Imaginary Unit] to display the
Imaginary Unit dialog box.
(3) On the Imaginary Unit dialog box, select the type of
imaginary unit you want to use.
16-15 Specifying the Complex Number
Imaginary Unit
In mathematics, the imaginary unit i allows the real number system R to be extended to the
complex number system C.
In electrical engineering and related fields, the imaginary unit is often written as
j to avoid
confusion with a changing current, traditionally denoted by i .
Your ClassPad lets you specify either “ i ” or “ j ” for the imaginary unit.
(4) After the setting is the way you want, tap [Set] to apply it and close the Imaginary Unit
dialog box, or tap [Cancel] to close without changing the setting.
16-15-1
Specifying the Complex Number Imaginary Unit