Sharp EL-5160S, Operation Manual

Page: 163 / 188

E-52
COMPLEX NUMBER CALCULATIONS
To carry out addition, subtraction, multiplication, and
division using complex numbers, press
b
3
to
select CPLX mode.
Results of complex number calculations are expressed
using two systems:
①
@ E
: Rectangular coordinate system
(The symbol appears.)
②
@ u
: Polar coordinate system
(The symbol appears.)
Complex Number Entry
① Rectangular coordinates
x-coordinate
+
y-coordinate
O
or x-coordinate
+
(
-
)
O
y-coordinate
② Polar coordinates
r
Q θ
r : absolute value
θ
: argument
• On selecting another mode, the imaginary part of any
complex number stored in the independent memory
(M) and the last answer memory (ANS) will be
cleared.
• A complex number expressed in rectangular
coordinates with the y-value equal to zero, or
expressed in polar coordinates with the angle equal
to zero, is treated as a real number.
• Press
N 1
to return the complex conjugate of
the specifi ed complex number.
(12
−
6
i
)
+
(7
+
15
i
)
−
(11
+
4
i
)
=
b 3
12
-
6
O +
7
+
15
O
- (
11
+
4
O )
=
8
.
+5
.
K
6
×
(7
−
9
i
)
×
(
−
5
+
8
i
)
=
6
k (
7
-
9
O )
k ( S
5
+
8
O )
=
222
.
+606
.
K
16
×
(sin 30°
+
i cos 30°)
÷
(sin 60°
+
i cos 60°)
=
16 k
(
v 30
+
O
$
30
)
z
(
v 60
+
O
$
60
)
=
13
.
85640646
+8
.
K