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

Calculator

Graph

Function:	SEC()
	X-axis	Y-axis
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Related functions

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