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ƒ Arccos calculator
Local preview
−1Cosine value1
Principal angle θ = arccos(x)
60°π/3 rad

180°90°−101
Real values · −1 ≤ x ≤ 1 Range: 0° to 180°
Published capability math.arccos · v1.0.4

Published evidence describes the production capability, not this local preview.

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Arccos formula ↗

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POST https://www.calculatorx.com/api/v1/calc/arccos
Content-Type: application/json
CalculatorX-Spec-Version: 1.0.4

{ "inputs": { "x": 0.5 } }
arccos(0.5) → 60° Version-pinned request example