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Section 11: Calculating With Complex Numbers
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 + 8i without moving the stack and then find its square.
Keystrokes
(−)
8
´ }
−
9
| x
´ % (hold)
(release)
Re
T
a
Z
c
Y
e
X
4
Keys:
Display
(0.0000)
8
7.0000
0.0000
9
17.0000
144.0000
17.0000
Im
Re
b
a
d
c
f
e
7
0
−
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.
Enter imaginary part first.
Displays real part; Complex
mode activated.
Disables stack. (Otherwise, it
would lift following }.)
Enters real part (digit entry not
terminated).
Real part.
Imaginary part.
Im
Re
b
a
d
c
f
e
7
8
8
Im
Re
b
a
d
c
f
e
7
7
´ }
127
Im
b
d
f
8
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