SEC function

Description

Secant function. SEC(x) returns the secant of x. The argument x must be expressed in radians. To convert degrees to radians you use the RADIANS function.

The secant is the reciprocal of the cosine:

$$ \operatorname{sec}(x) = \frac{1}{\operatorname{cos}(x)} $$

The argument x can be a real number or a matrix. When it is a matrix, the function returns a matrix with the same dimensions and with the SEC function applied to all elements.

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Function:

SEC()

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Related functions

COS function: Cosine function
RADIANS function: converts degrees into radians
Trigonometric functions