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Chapter 2: Operating the Graphing Calculator
3 image( image(
complex number
)
Returns the imaginary part of
a complex number (or list of
complex numbers).
4 abs( abs(
complex number
)
Returns the absolute value of
a complex number (or list of
complex numbers).
5 arg( arg(
complex number
)
Takes the coordinates (x + yi),
and returns the
θ
.
Calculations using complex numbers
To calculate using complex numbers, select the sub-menu item
4
x ± yi
or
5
r
in the
F
ANSWER of the SETUP menu items.
The initial screen for the complex number calculation mode is the same as for the real
number mode.
Complex numbers can be noted using either
4
x ± yi
(rectangular coordinates) or
5
r
(polar coordinates).
Example
• Calculate (3 + 4
i
)
×
(4 – 6
i
)
Note : It is possible to input complex numbers
(
i
) in the real number mode, however
an error message will return.
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