Chapter 4: Constants, Conversions, Bases, and Complex Numbers
71
04CCCB.DOC TI-86, Chap 4, US English Bob Fedorisko Revised: 02/13/01 2:20 PM Printed: 02/13/01 3:01 PM Page 71 of 1604CCCB.DOC TI-86, Chap 4, US English Bob Fedorisko Revised: 02/13/01 2:20 PM Printed: 02/13/01 3:01 PM Page 71 of 16
For example, when
PolarC
and
Degree
modes are set,
(2,1)
N
(1
±
45)
returns
(1.32565429614
±
12.7643896828)
.
Using a Complex Number in an Expression
♦
Enter the complex number directly.
♦
Use the ALPHA keys, alpha keys, and other character keys to enter a complex variable.
♦
Select a complex variable from the
VARS CPLX
screen.
The CPLX (Complex Number) Menu
-
‹
conj real imag abs angle
4 4
Rec
4
Pol
conj (real,imaginary)
Returns the complex conjugate of a complex value, list, vector or
matrix; the result is
(real,
L
imaginary)
conj (magnitude
±
angle)
Returns
(magnitude
±L
angle)
real (real,imaginary)
Returns the real portion of a complex number, list, vector, or matrix as
a real number; the result is
real
real (magnitude
±
angle)
Returns
magnitude
¹
cosine(
angle
)
imag (real,imaginary)
Returns the imaginary (non-real) portion of a complex number, list,
ector, or matrix as a real number; the result is
imaginary
imag (magnitude
±
angle)
Returns
magnitude
¹
sine(
angle
)
abs (real,imaginary)
(Absolute value) Returns the magnitude (modulus) of a complex
number, list, vector, or matrix of complex numbers; the result is
‡
(
real
2
+
imaginary
2
)
abs (magnitude
±
angle)
Returns
magnitude
You can enter the name or a
complex list, vector, or matrix
as an argument for any
CPLX
menu item.
