COS

All functions > MATH > COS

Returns the cosine of an angle in radians.

Syntax

COS(radians: T) → DOUBLE

Type Parameters:

• T: Any numeric type (TINYINT, SMALLINT, INTEGER, BIGINT, FLOAT, DOUBLE, DECIMAL)

Arguments

Returns

DOUBLE - Cosine value (between -1 and 1)

Notes

• Input angle must be in radians (use RADIANS() to convert from degrees)
• Returns values in the range [-1, 1]
• COS(0) = 1, COS(π/2) = 0, COS(π) = -1
• Period of 2π: COS(x) = COS(x + 2π)
• Even function: COS(-x) = COS(x)
• Returns NULL if input is NULL

Examples