TAN()

All functions > MATH > TAN()

Returns the tangent of an angle in radians.

Signatures

Tangent

Returns: Tangent value

TAN(radians: T) → DOUBLE

With:

• T : Floating-point type (FLOAT, DOUBLE)

Signature notes:

• Input must be in radians; use RADIANS() to convert from degrees
• Undefined at odd multiples of π/2; engines typically return very large values
• Period of π; odd function: TAN(-x) = -TAN(x)
• Returns NULL if the input is NULL

Examples

SELECT
    f1 := TAN(0E0), -- tan(0) = 0
    f2 := TAN(0.7853981633974483E0), -- tan(π/4) ≈ 1
    f3 := TAN(0.5235987755982988E0), -- tan(π/6)
    f4 := TAN(-0.7853981633974483E0) -- Odd function
;