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Using Polar Coordinates - HP -28S Manual

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• 1M
(imaginary part)
returns y for a complex argument
(x,
y).
• CON]
(conjugate)
returns
(x,
-y) for a complex argument
(x,
y).
• SIGN returns
(x/yx
2
+
y2, y/yx 2
+
y2)
for a complex argument
(x,
y).
Display the next row of the COMPLEX menu.
INEXTI
~2~:----------------~(~0~,~2~)
1:
(1.57079632679~
-1.31695789692)
DmIDDlI:llBlCIB.:IB_
These functions (except NEG) relate to complex numbers in polar
coordinates.
Using Polar Coordinates
A point in a plane can be described by two different coordinate sys-
tems. The illustration below shows one point described two ways, in
rectangular notation
(x,
y)
and in polar notation
(r,
0).
x
\
1/
H
84
6: Complex-Number Functions

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