Section 11: Calculating With Complex Numbers 127
Entering Complex Numbers with
−
. The clearing functions
−
and
`
can also be used with
}
as an alternative method of entering
(and clearing) complex numbers. Using this method, you can enter a
complex number using only the X-register, without affecting the rest of the
stack. (This is possible because
−
and
`
disable stack lift.)
Executing
}
will also create an imaginary stack if one is not already
present.
Example:
Enter 9 + 8
i
without moving the stack and then find its square.
Keystrokes
Display
(
−
)
(0.0000)
Prevents stack lift when the
next digit (8) is keyed in.
Omit this step if you'd rather
save what's in X and lose
what's in T.
8
8
Enter imaginary part first.
´
}
7.0000
Displays real part; Complex
mode activated.
−
0.0000
Disables stack. (Otherwise, it
would lift following
}
.)
9
9
Enters real part (digit entry not
terminated).
|
x
17.0000
Real part.
´
%
(hold)
(release)
144.0000
Imaginary part.
17.0000
Re
Im
Re
Im
Re
Im
Re
Im
T
a
b
a
b
a
b
a
b
Z
c
d
c
d
c
d
c
d
Y
e
f
e
f
e
f
e
f
X
4
7
0
7
8
7
7
8
Keys:
−
8
´
}
Summary of Contents for HP-15C
Page 1: ...HP 15C Owner s Handbook HP Part Number 00015 90001 Edition 2 4 Sep 2011 ...
Page 17: ...Part l HP 15C Fundamentals ...
Page 64: ......
Page 65: ...Part ll HP 15C Programming ...
Page 118: ...118 ...
