POLAR COORDINATES Conversions (Page 2 of 6)

To find the direction angle θ, we use the RtoPθ command. Let's find the direction angle for the same ordered pair (5, -3). The result, since it will be an angle, will depend upon what mode the calculator is in (radian or degree). First, we will find the angle in radians. Be sure the calculator is in Radian mode, then enter the command.

 MODE key. [Radian] ENTER key.

 2nd QUIT key.
 2nd ANGLE key. 6: menu selection. 5 Comma key. Negation key. 3 Right parenthesis key. ENTER key.

 Calculator screen image. Calculator screen image.

So, one set of polar coordinates for the point would be approximately (5.83, -0.54) in radians.
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