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Tool 471 · trigonometry studio

Values, circle, graph, triangle — one trigonometry workspace.

Evaluate all six trig functions and inverses, recognize exact common-angle values, explore the unit circle, graph transformed trig functions, solve general triangles, and keep essential identities beside the calculation.

6 trig + inversesExact common anglesUnit-circle visualizerGeneral triangle solver

Trig calculator

Evaluate angles in degrees, radians, or gradians.

Inverse mode: the number in the input becomes a trig ratio and the result is returned in your selected unit. Domain errors are reported clearly.

Angle snapshot

Values update from the current angle.

Selected result
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sin

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cos

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tan

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csc

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sec

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cot

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Enter any valid combination with at least one side: SSS, SAS, ASA/AAS, or SSA. For SSA, the solver reports both triangles when the ambiguous case has two valid solutions.
Pythagorean
sin²x + cos²x = 1
1 + tan²x = sec²x
1 + cot²x = csc²x
Reciprocal / quotient
csc x = 1/sin x
sec x = 1/cos x
cot x = cos x/sin x
Double angle
sin 2x = 2 sin x cos x
cos 2x = cos²x − sin²x
Sum / difference
sin(a±b)=sin a cos b ± cos a sin b
cos(a±b)=cos a cos b ∓ sin a sin b
Law of sines
a/sin A = b/sin B = c/sin C
Law of cosines
c² = a²+b²−2ab cos C
Calculation steps appear here.
Floating-point values are rounded for display. Exact common-angle labels are used when the angle is recognized within a tight tolerance. Tangent/secant/cosecant/cotangent singularities are shown as undefined rather than as huge floating-point artifacts.