NAME¶
Math_Built-In_Functions - The table below describes the list of built-in math
functions. These functions can take scalar or vector arguments. Click an item
in the table for details about that function.
| acos(3clc) |
acos(3clc) |
acos(3clc) |
asin(3clc) |
| asin(3clc) |
asin(3clc) |
atan(3clc) |
atan(3clc) |
| atan(3clc) |
atan(3clc) |
atan(3clc) |
cbrt(3clc) |
| ceil(3clc) |
copysign(3clc) |
cos(3clc) |
cos(3clc) |
| cos(3clc) |
erf(3clc) |
erf(3clc) |
exp(3clc) |
| exp(3clc) |
exp(3clc) |
exp(3clc) |
fabs(3clc) |
| fdim(3clc) |
floor(3clc) |
fma(3clc) |
fmax(3clc) |
| fmin(3clc) |
fmod(3clc) |
fract(3clc) |
frexp(3clc) |
| hypot(3clc) |
ilogb(3clc) |
ldexp(3clc) |
lgamma(3clc) |
| lgamma(3clc) |
log(3clc) |
log(3clc) |
log(3clc) |
| log(3clc) |
log(3clc) |
mad(3clc) |
mag(3clc) |
| mag(3clc) |
modf(3clc) |
nan(3clc) |
nextafter(3clc) |
| pow(3clc) |
pow(3clc) |
pow(3clc) |
remainder(3clc) |
| remquo(3clc) |
rint(3clc) |
rootn(3clc) |
round(3clc) |
| sqrt(3clc) |
sin(3clc) |
sin(3clc) |
sin(3clc) |
| sin(3clc) |
sqrt(3clc) |
tan(3clc) |
tan(3clc) |
| tan(3clc) |
tgamma(3clc) |
trunc(3clc) |
|
The table below describes the list of built-in math functions that are defined
with the
half_ or
native_ prefix
| cos(3clc) |
divide(3clc) |
exp(3clc) |
exp(3clc) |
| exp(3clc) |
log(3clc) |
log(3clc) |
log(3clc) |
| pow(3clc) |
recip(3clc) |
sqrt(3clc) |
sin(3clc) |
| sqrt(3clc) |
tan(3clc) |
|
|
DESCRIPTION¶
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(3clc), 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.
The math functions that are defined with the
half_ prefix are implemented
with a minimum of 10-bits of accuracy i.e. an ULP value <= 8192 ulp.
The math functions that are defined 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) described. The accuracy (and in some cases the input
range(s)) of these functions is implementation-defined.
SPECIFICATION¶
OpenCL Specification[1]
SEE ALSO¶
mathConstants(3clc),
FP_CONTRACT(3clc),
macroLimits(3clc)
AUTHORS¶
The Khronos Group
COPYRIGHT¶
Copyright © 2007-2011 The Khronos Group Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and/or associated documentation files (the
"Materials"), to deal in the Materials without restriction,
including without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Materials, and to permit
persons to whom the Materials are furnished to do so, subject to the condition
that this copyright notice and permission notice shall be included in all
copies or substantial portions of the Materials.
NOTES¶
- 1.
- OpenCL Specification
page 244, section 6.12.2 - Math Functions
