Arcsecant Calculator
Calculate the arcsecant (arcsec) of a value and get the angle in degrees, radians and gradians. Domain: |x| ≥ 1.
Degrees (°)
Radians
Gradians
What is Arcsec?
Arcsec (arc secant) is the inverse of the secant: given a value x, it returns the angle θ such that sec(θ) = x. It is computed as arcsec(x) = arccos(1/x).
The result is in the interval [0°, 90°) ∪ (90°, 180°]. Examples: arcsec(1) = 0°, arcsec(2) = 60°, arcsec(−1) = 180°.
Domain: x ≤ −1 or x ≥ 1. Values between −1 and 1 (exclusive) have no real arcsec.
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