HP 50g User Manual page 70

The first menu (options 1 through 6) shows the following functions:
Examples of applications of these functions are shown next in RECT
RE(z) Real part of a complex number
IM(z) Imaginary part of a complex number
C R(z) Separates a complex number into its real and imaginary
parts
R C(x,y) Forms the complex number (x,y) out of real numbers x and
y
ABS(z) Calculates the magnitude of a complex number.
ARG(z) Calculates the argument of a complex number.
SIGN(z) Calculates a complex number of unit magnitude as z/
|z|.
NEG(z) Changes the sign of z
CONJ(z) Produces the complex conjugate of z
coordinates. Recall that, for ALG mode, the function must precede the
argument, while in RPN mode, you enter the argument first, and then select
the function. Also, recall that you can get these functions as soft menu
labels by changing the setting of system flag 117 (See Chapter 2).
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