POLAR COORDINATES Conversions (Page 6 of 6)

If the direction angle is given in radians, either change the calculator to radian mode first, or leave the calculator in degree mode but attach the radian symbol to the angle measure. As an example of the second method, we will find the x-coordinate and y-coordinate for the ordered pair (3, 5π/4).

 CLEAR key.

 2nd ANGLE key. 7: menu selection. 3 Comma key. Left parenthesis key. 5 2nd Pi key. Divide key. 4 Right parenthesis key. 2nd ANGLE key. 3: menu selection.
 Right parenthesis key. ENTER key.

 Calculator screen image.
 2nd ANGLE key. Up arrow key. 8: menu selection. 3 Comma key. Left parenthesis key. 5 2nd Pi key. Divide key. 4 Right parenthesis key.
 2nd ANGLE key. 3: menu selection. Right parenthesis key. ENTER key.		 Calculator screen image.

In rectangular coordinates, the ordered pair is approximately (-2.12, -2.12).
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