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Inverse Trigonometric Calculator
arcsin, arccos, arctan, arccot, arcsec, arcsc — plus atan2(y,x), angle→ratio mode, and a quick reference. Principal values shown in your chosen unit.
Select one inverse function, enter x, then calculate.
Domain: −1 ≤ x ≤ 1 (principal range: [−90°, 90°])
Shows every inverse function valid for this x. arctan / arccot accept any real x; arcsin & arccos need |x| ≤ 1; arcsec & arccsc need |x| ≥ 1.
θ = atan2(y, x) gives the angle from the positive x-axis to point (x, y), in (−180°, 180°].
Enter θ in the unit selected above. Computes sin θ, cos θ, tan θ and verifies with inverse functions.
Tap a value to use it in Inverse from value mode.
Calculate inverse trig functions like arcsin, arccos, and arctan. Enter values to find angles, important in trigonometry, physics, and engineering applications. Use calculatoric's update website to calculate arcsin, arctan, arccot, etc., easily.