Calculate secant from an angle in degrees or radians.
Last updated: June 2026 | By Patchworkr Team
Secant is the reciprocal of cosine. If cosine is zero, secant is undefined.
sec(60 degrees) = 2 because cos(60 degrees) = 1/2.
Whenever cosine is zero.
Yes. The calculator accepts both degrees and radians.
No. Secant is the reciprocal of cosine.
Yes. It rejects non-numeric input and undefined secant cases.
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