Casio fx-180P Manual De Operación página 21

5-5 Rectangular to polar co-ordinates conversion
Formula: r= V/x' +y'
4y
Ex.)
Find the length r and angle 0 in radian when the point P is shown as x = 1 and y = \/3
in the rectangular co-ordinates.
Ay 'iPUA/f)
/ N
y y
/
X
[BEE [1.047197551 1(6 in radian)
56 Polar to Rectangular co-ordinates conversion
Formula: x = r-coso
y = rosin0
Ex.)
Obtain the values of x and y when the point P is shown as 0 = 60° and length r = 2 in
the polar co-ordinates.
l
0 X/
5-7 Applications
IDecibel (dB) conversion
Ex.)
How many US of amplifier gain is in an amp with 5mW of input power and 43W of
output power?
P.
Formula: d8 = lO-Iogu,
l
P| : Input power (W)
P2 : Output power (W) OPERATION READ-OUT
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