tan, tanh, tanpi, half_tan, native_tan

Tangent functions.

 ``` gentype tan (``` gentype `)`
 ``` gentype tanh (``` gentype `)`
 ``` gentype tanpi (``` gentype x`)`
 ``` gentype half_tan (``` gentype x`)`
 ``` gentype native_tan (``` gentype x`)`

Description

`tan` computes the tangent.

`tanh` computes the hyperbolic tangent.

`tanpi` computes `tan`(`pi * x`).

`half_tan` computes tangent. `x` must be in the range -216... +216.

`native_tan` computes tangent over an implementation-defined range. The maximum error is implementation-defined.

Notes

The vector versions of the math functions operate component-wise. The description is per-component.

The built-in math functions are not affected by the prevailing rounding mode in the calling environment, and always return the same value as they would if called with the round to nearest even rounding mode.

The built-in math functions take scalar or vector arguments. For any specific use of these function, the actual type has to be the same for all arguments and the return type unless otherwise specified.

The generic type name gentype is used to indicate that the function can take float, float2, float3, float4, float8, float16, double, double2, double3, double4, double8, or double16 as the type for the arguments.

If extended with cl_khr_fp16, generic type name gentype may indicate half and half{2|3|4|8|16} as arguments and return values.

The generic type name gentypef is used to indicate that the function can take float, float2, float3, float4, float8, or float16 as the type for the arguments.

The generic type name gentyped is used to indicate that the function can take double, double2, double3, double4, double8, or double16 as the type for the arguments.

Functions with the `half_` prefix are implemented with a minimum of 10-bits of accuracy i.e. an ULP value less than or equal to 8192 ulp.

Functions with the `native__` prefix may map to one or more native device instructions and will typically have better performance compared to the corresponding functions (without the `native__` prefix). The accuracy (and in some cases the input range(s)) of these functions is implementation-defined.

Also see

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