HP -32S Owner's Manual page 64

Keys:
Display:
Mil MODES | {DG>
30 1 ENTER | 10
HIP-RECT \<Q,r»y,x\
l»*yl
8.6663
5.0000
4 I ENTER I 3
|« P~RECT | {y,*+8,r >
l**y|
5.0000
53.1301
62 4: Real-Number Functions
Description:
Sets Degrees mode.
Calculates x.
Displays y.
Calculates the hypote
nuse (r).
Displays 0.
Example: Conversion With Vectors. Engineer P.C. Bord has deter
mined that in the RC circuit shown on the next page at left, the total
impedance is 77.8 ohms and voltage lags current by 36.5°. What are
the values of resistance, R, and capacitive reactance, Xc, in the circuit?
Use a vector diagram as shown with impedance equal to the polar
magnitude, r, and voltage lag equal to the angle, 0, in degrees. When
the values are converted to rectangular coordinates, the x-value yields
R, in ohms, while the y-value yields Xc, in ohms.