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23
Note: Press - to clear the screen between problems.
Retain radian mode on the calculator and calculate the sine of
30¡. Change the calculator to degree mode and find the sine
of p / 6 radians.
Rectangular to polar
d R³´P
d! displays the R³´P menu, which has functions for
converting coordinates between rectangular (x,y) and polar
(r,q) format. Set Angle mode, as necessary, before starting
calculations.
Example
Convert polar coordinates (r, q)=(5, 30) into rectangular
coordinates. Then convert rectangular coordinates
(x, y) = (3, 4) into polar coordinates. Round the results to one
decimal place.
- X 30 ) <
q " < -
X g P 6 " ) <
X 30 d"" < ) <
q < -
X g P 6 " d"" 4
) <
1: P ´Rx( Converts polar to rectangular and displays x.
2: P ´Ry( Converts polar to rectangular and displays y.
3: R ´Pr( Converts rectangular to polar and displays r.
4: R ´
Pq( Converts rectangular to polar and displays q.
R³´P - q $ $ " "
<
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