Calculate the inverse cotangent (arccot) of a value.
Input Parameter
Resulting Angle
45.00°
Angle in Degrees (°)
The angle whose cotangent is the input value.
Angle in Radians (rad)0.7854rad
About this calculator
What is Arccot?
Arccot (or inverse cotangent) is the inverse function of cotangent. Since cotangent is 1/tan, arccot(x) is related to arctan(1/x). The domain of arccot(x) is all real numbers (-∞, ∞), and the range is usually defined as (0, π).
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Pro Tips
Arccot is positive for all real inputs if defined on (0, π).
Arccot(0) = 90 degrees.
As x goes to infinity, arccot(x) approaches 0 degrees.
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Fun Facts
"In a right triangle, cotangent is the ratio of Adjacent side to Opposite side."
"Historically, cotangent was often called 'umbra recta' (straight shadow) in early shadow-measuring tables."
"Modern calculators often lack a dedicated arccot button, requiring the use of arctan(1/x) instead."
