ASEC

Returns the inverse secant of the given angle.

Syntax

ASEC(Angle)

Angle is the angle in radians for which you want the inverse secant.

Remark

The mathematical definition of inverse secant is :

Let Atn(x) be inverse tangent of angle x in radians. Let Sgn(x) be the sign of x in radians.

If the angle is in degrees, multiply it by PI()/180 or use the RADIANS function to convert it to radians.

Example

Formula
Description
=ASEC(1.047)
Inverse secant of 1.047 radians
=ASEC(60*PI()/180)
Inverse secant of 60 degrees (0.5)
=ASEC(RADIANS(60))
Inverse secant of 60 degrees (0.5)