• where is an angle in degrees.

## Description

• One radian is the angle subtended at the center of a circle by an arc that is equal in length to the radius of the circle.
• Formula for converting from degrees to radians is :

Angle in radians = angle in degrees x $\displaystyle \frac{\pi}{180 °}$

• If argument is non-numeric, Calci returns a NaN error.
• RADIANS() can be used for array of angles e.g. 0 to 90 degress in steps of 15 degrees as -

0 0
15 0.2617993877991494
30 0.5235987755982988
45 0.7853981633974483
60 1.0471975511965976
75 1.3089969389957472
90 1.5707963267948966