gentype
exp
(
| gentype x) |
gentype
exp2
(
| gentype ) |
gentype
exp10
(
| gentype ) |
gentype
expm1
(
| gentype x) |
gentype
half_exp
(
| gentype x) |
gentype
half_exp2
(
| gentype x) |
gentype
half_exp10
(
| gentype x) |
gentype
native_exp
(
| gentype x) |
gentype
native_exp2
(
| gentype x) |
gentype
native_exp10
(
| gentype x) |
exp
computes the base- e exponential of x
.
exp2
is the exponential base 2 function.
exp10
is the exponential base 10 function.
expm1
computes e
x - 1.0.
half_exp
computes the base- e exponential of x
.
half_exp2
computes the base- 2 exponential of x
.
half_exp10
computes the base- 10 exponential of x
.
native_exp
computes the base- e exponential of x
over an
implementation-defined range. The maximum error is implementation-defined.
native_exp2
computes the base- 2 exponential of x
over an
implementation-defined range. The maximum error is implementation-defined.
native_exp10
computes the base- 10 exponential of x
over an
implementation-defined range. The maximum error is implementation-defined.
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.