Numeric - Angle

Syntax:
Angle(Point1, Point2, Point3 [, RadDeg])

Description:
Returns the angle defined by the three points.

PointN: XYZ coordinates of point N.
RadDeg: 0=angle in radians, 1=angle in degrees

Example:
=Angle(A1:C1,A2:C2,A3:C3,1)