Sharp el-9950 - Page 44

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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.