Texas Instruments TI-86 - Manual (Page 83)

Chapter 4: Constants, Conversions, Bases, and Complex Numbers
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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 16 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 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 , Limaginary )
conj ( magnitude ±angle ) Returns ( magnitude ±Langle )
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 magnitude¹cosine(angle)
imag ( real , imaginary ) Returns the imaginary (non-real) portion of a complex number, list,
vector, or matrix as a real number; the result is imaginary
imag ( magnitude ±angle ) Returns magnitude¹sine(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.