RADIANS()
Syntax. RADIANS(angle)
Definition. This function converts degrees into radian measures.
Argument
angle (required) The angle that you want to convert, in degrees
Background. You can calculate the segment of a circle based on the angle as well as on the circumference and arc. This quotient is called a radian or radiant (see Figure 16-22). Because the angle functions in Excel are based on radians, this function is often used to specify the arguments for angle functions.
The following applies:
Circumference (2πr) / arc (b) = round angle (360°) / angle at center (α)
The measure for the radian is the radiant (rad). The full circumference of a circle is 360° or 2π = 6.28318531 rad. A half-circle is π = 3.14159265 rad.
Figure 16-22. The radian in a ...
Get Microsoft® Excel® 2010 Formulas & Functions Inside Out now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
