Parameter List
Syntax
SEC(angle)
angle
The angle in radians for which you want the secant. For example: PI()/3, 0, RADIANS(60), A1.
More details
SEC calculates the secant of an angle in radians. Secant equals 1/COS(angle). Returns #DIV/0! error when the cosine of the angle is zero (at odd multiples of π/2). Use RADIANS() to convert degrees to radians if needed.