Cotangent Calculator
Compute cot(θ) in degrees, radians, or gradians with exact values, unit-circle geometry, a waveform chart, and step-by-step output.
Angle
Updates as you typeUnit
Measurement unit ?
Angle
Angle (θ) ?
—
°
Quick angles ?
Display (optional)
Decimal precision ?
Format ?
Keyboard: focus the input then ←/→ to nudge 1°, Shift+←/→ for 15°. D/R/G switch units.
Common angles reference
Click a row to fill| Deg | Rad | sin | cos | tan | cot |
|---|
Formulas
Definition: cot(θ) = adjacent / opposite = cos(θ) / sin(θ) = 1 / tan(θ)
Undefined: cot(θ) is undefined when sin(θ) = 0 (at 0°, 180°, 360°, …)
- θ
- The angle, measured in degrees, radians, or gradians.
- cot(θ)
- The ratio of the adjacent side to the opposite side in a right triangle.
- Range
- cot(θ) ∈ (−∞, +∞).
- Period
- cot(θ) repeats every 180° (π radians).