COT

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Syntax

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Scalar

cot(value)

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Arguments

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Returns

• Type: DOUBLE; FLOAT when the input is evaluated as FLOAT
• Possible values: The reciprocal of tangent.
• NULL behavior: Returns NULL when an argument is NULL.

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Properties

• Approximation bound: No fixed maximum error is guaranteed.

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Units

• Input unit: Radians
• Output unit: Dimensionless ratio
• Use radians(degrees) to convert an angle expressed in degrees.

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Usage notes

• INTEGER and INT mean the same type; STRING means VARCHAR text. NULL can be used with a supported type. Cast NULL explicitly when its type would otherwise be unclear.
• Exact result: Floating-point computation can round the mathematical result.

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Examples

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Value and NULL input

SELECT cot(CAST(0 AS DOUBLE)) AS "value", cot(CAST(NULL AS DOUBLE)) AS null_value;

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Positive and negative eighth-turns

SELECT round(cot(pi() / 4), 6) AS positive_angle, round(cot(-pi() / 4), 6) AS negative_angle;

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Limitations

• An input of zero returns positive infinity.
• Query tools may report DOUBLE even when the result is FLOAT. The reported type does not increase the result’s precision.