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Converting an Input Value to the Calculator’s Default Angle Unit

After inputting a value, press (Angle Unit)* to display the angle unit specification menu shown below. Press the number key that corresponds to the angle unit of the input value. The calculator will automatically convert it to the calculator’s default angle unit.

* Depending on the calculation mode, you should press .

° : Degrees, r : Radians, g : Gradians


Example 1: To convert the following values to degrees: π2 radians = 90°, 50 grads = 45°

The following procedure assumes that the calculator’s default angle unit is degrees.

  • (π)2
    (Angle Unit)(r)
  • 50(Angle Unit)(g)

Example 2: cos(π radians) = -1, cos(100 grads) = 0

  • (π)
    (Angle Unit)(r)
  • 100(Angle Unit)(g)

Example 3: cos-1(-1) = 180 (Angle Unit: Degree), cos-1(-1) = π (Angle Unit: Radian)

(Angle Unit: Degree)

  • (cos-1)1

(Angle Unit: Radian)

  • (cos-1)1
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