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Scalar function
Returns NULL when an argument is NULL.

Syntax

Scalar

Arguments

Returns

  • Type: DOUBLE
  • Possible values: The reciprocal of cosine.
  • NULL behavior: Returns NULL when an argument is NULL.

Properties

  • Approximation bound: No fixed maximum error is guaranteed.

Units

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

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.

Examples

Value and NULL input

A nonzero input

The result is rounded to six decimal places for display.
Last modified on October 15, 2026