SEC Function

The Excel SEC function returns the secant of an angle provided in radians.

April 14, 2025 · 1 min · 31 words · Alexis Bailey

Table of Contents

For example, the secant of PI()/6 (30) returns the ratio 1.514.

To supply an angle to COS in degrees, use the RADIANS function to convert to radians.

CSC Function

Graph of Secant Function

Graph of Secant and Cosine Function

Excel COS function

Excel CSC function

Excel COT function

Graph of Secant Function

Graph of Secant and Cosine Function