 Angles are computed using radians; degree values must be converted to radians by dividing by 57.2958.As an example, to calculate 25 sin (600*0.05°) one would enter C 6 E 2 + 0 0 5 × 5 7 2 9 5 8 E 1 ÷ ▲ + 2 5 E 1 × to get a result of 1.2500 01 (representing 12.5 which is equal to 25 sin(30°) ).Sine is selected with the combination of the "▲" key followed by the "+" key.