## Trigonometric Function (trigonometric_function)

A trigonometric function (trigonometric_function) is a function that supplies a numeric value as a result.

### Syntax

<trigonometric_function> ::=
COS ( <expression> )
| SIN ( <expression> )
| TAN ( <expression> )
| COT ( <expression> )
| COSH ( <expression> )
| SINH ( <expression> )
| TANH ( <expression> )
| ACOS ( <expression> )
| ASIN ( <expression> )
| ATAN ( <expression> )
| ATAN2 ( <expression>, <expression> )
| RADIANS ( <expression> )
| DEGREES ( <expression> )

### Explanation

All expressions (expression) in every trigonometric function identify an angle in radians and are denoted with a and b below. The only exception to this is the RADIANS function.

| Result of the Trigonometric Function
a is a NULL value | NULL value
a is a special NULL value | Special NULL value
COS(a) | Cosine of number a
SIN(a) | Sine of number a
TAN(a) | Tangent of number a
COT(a) | Cotangent of number a
COSH(a) | Hyperbolic cosine of number a
SINH(a) | Hyperbolic sine of number a
TANH(a) | Hyperbolic tangent of number a
ACOS(a) | Arc cosine of number a
ASIN(a) | Arc sine of number a
ATAN(a) | Arc tangent of number a
ATAN2(a,b) | Arc tangent of the value a/b, where -p<=a<=+p and -p<=b<=+p
ASIN(a) | Arc sine of number a
RADIANS(a) | Angle in radians of the number a
DEGREES(a) | Value in degrees of the number a

See also:

Functions: Overview