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Example:
Polar to Rectangular Conversion.
In the following right triangles, find sides x and y in the triangle on the left, and
hypotenuse r and angle
o
30
Keys:
Ý
{ }
Ï
30
10
w
Ï
4
3
w
Example:
Conversion with Vectors.
Engineer P.C. Bard has determined that in the RC circuit shown, the total
impedance is 77.8 ohms and voltage lags current by 36.5 º. What are the values
of resistance R and capacitive reactance X
Use a vector diagram as shown, with impedance equal to the polar magnitude, r,
and voltage lag equal to the angle,
to rectangular coordinates, the x–value yields R, in ohms; the y–value yields X
ohms.
File name 33s-E-Manual-1008-Publication(1st).doc
Printed Date : 2003/10/8
θ
in the triangle on the right.
10
x
Display:
º ±
¹ °
Size : 13.7 x 21.2 cm
y
Description:
Sets Degrees mode.
Calculates x.
Displays y.
Calculates hypotenuse (r).
θ
Displays
in the circuit ?
C
θ
, in degrees. When the values are converted
Real–Number Functions
Page : 386
r
θ
3
.
, in
C
4–11
4
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