SEC

Math & trig

Secant of an angle in radians.

Syntax

SEC(number)

Full notes for SEC are still being written. Use the AI explainer below for the arguments, a worked example and common mistakes.

More Math & trig functions

ABS ACOS ACOSH ACOT ACOTH AGGREGATE ARABIC ASIN ASINH ATAN ATAN2 ATANH

← All 510 functions

Syntax follows Microsoft’s documentation. Examples are written to be pasted into a cell and checked. Argument separators may be ; in your locale. The AI explainer runs on a free community model — verify anything important.