Inverse Trigonometric Calculator
Instantly compute the angle corresponding to a trigonometric value. Features dynamic unit circle visual projection and supports arcsin, arccos, arctan, arccsc, arcsec, and arccot.
Inverse Inputs
Calculated Values
What are Inverse Trigonometric Functions?
Inverse trigonometric functions (often called arcus functions or anti-trigonometric functions) are the inverse functions of the basic trigonometric functions. They are used to find the angle θ when the value of the trigonometric ratio is known.
For example, because sin(30°) = 0.5, the inverse sine of 0.5 yields 30°: arcsin(0.5) = 30°.
Domain Limitations
Functions like Arcsine (sin⁻¹) and Arccosine (cos⁻¹) only accept values between -1 and 1. Inputting a value outside this range will result in an undefined output.
Principal Valued Range
Because trigonometric functions are periodic, their inverses are restricted to specific ranges (principal branches) to maintain unique outputs, e.g. [-90°, 90°] for arcsin.
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