ClassPad 330 Plus Manual

20110401
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ClassPad Operation
(1) On the application menu, tap
Y
.
• 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.
16-10 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.
16-10-1
Specifying the Complex Number Imaginary Unit