Concurrency::precise_math Namespace

Article
07/10/2012

Functions in the precise_math namespace are C99 compliant. Both single precision and double precision versions of each function are included. For example, acos is the double-precision version and acosf is the single-precision version. These functions, including the single-precision functions, require extended double-precision support on the accelerator. You can use the accelerator::supports_double_precision Data Member to determine if you can run these functions on a specific accelerator.

namespace precise_math;

Members

Functions

Name	Description
acos Function	Overloaded. Calculates the arccosine of the argument
acosf Function	Calculates the arccosine of the argument
acosh Function	Overloaded. Calculates the inverse hyperbolic cosine of the argument
acoshf Function	Calculates the inverse hyperbolic cosine of the argument
asin Function	Overloaded. Calculates the arcsine of the argument
asinf Function	Calculates the arcsine of the argument
asinh Function	Overloaded. Calculates the inverse hyperbolic sine of the argument
asinhf Function	Calculates the inverse hyperbolic sine of the argument
atan Function	Overloaded. Calculates the arctangent of the argument
atan2 Function	Overloaded. Calculates the arctangent of _Y/_X
atan2f Function	Calculates the arctangent of _Y/_X
atanf Function	Calculates the arctangent of the argument
atanh Function	Overloaded. Calculates the inverse hyperbolic tangent of the argument
atanhf Function	Calculates the inverse hyperbolic tangent of the argument
cbrt Function	Overloaded. Computes the real cube root of the argument
cbrtf Function	Computes the real cube root of the argument
ceil Function	Overloaded. Calculates the ceiling of the argument
ceilf Function	Calculates the ceiling of the argument
copysign Function	Overloaded. Produces a value with the magnitude of _X and the sign of _Y
copysignf Function	Produces a value with the magnitude of _X and the sign of _Y
cos Function	Overloaded. Calculates the cosine of the argument
cosf Function	Calculates the cosine of the argument
cosh Function	Overloaded. Calculates the hyperbolic cosine value of the argument
coshf Function	Calculates the hyperbolic cosine value of the argument
cospi Function	Overloaded. Calculates the cosine value of pi * _X
cospif Function	Calculates the cosine value of pi * _X
erf Function	Overloaded. Computes the error function of _X
erfc Function	Overloaded. Computes the complementary error function of _X
erfcf Function	Computes the complementary error function of _X
erfcinv Function	Overloaded. Computes the inverse complementary error function of _X
erfcinvf Function	Computes the inverse complementary error function of _X
erff Function	Computes the error function of _X
erfinv Function	Overloaded. Computes the inverse error function of _X
erfinvf Function	Computes the inverse error function of _X
exp Function	Overloaded. Calculates the base-e exponential of the argument
exp10 Function	Overloaded. Calculates the base-10 exponential of the argument
exp10f Function	Calculates the base-10 exponential of the argument
exp2 Function	Overloaded. Calculates the base-2 exponential of the argument
exp2f Function	Calculates the base-2 exponential of the argument
expf Function	Calculates the base-e exponential of the argument
expm1 Function	Overloaded. Calculates the base-e exponential of the argument, minus 1
expm1f Function	Calculates the base-e exponential of the argument, minus 1
fabs Function	Overloaded. Returns the absolute value of the argument
fabsf Function	Returns the absolute value of the argument
fdim Function	Overloaded. Determines the positive difference between the arguments
fdimf Function	Determines the positive difference between the arguments
floor Function	Overloaded. Calculates the floor of the argument
floorf Function	Calculates the floor of the argument
fma Function	Overloaded. Compute (_X * _Y) + _Z, rounded as one ternary operation
fmaf Function	Compute (_X * _Y) + _Z, rounded as one ternary operation
fmax Function	Overloaded. Determine the maximum numeric value of the arguments
fmaxf Function	Determine the maximum numeric value of the arguments
fmin Function	Overloaded. Determine the minimum numeric value of the arguments
fminf Function	Determine the minimum numeric value of the arguments
fmod Function (C++ AMP)	Overloaded. Calculates the floating-point remainder of _X/_Y
fmodf Function	Calculates the floating-point remainder of _X/_Y
fpclassify Function	Overloaded. Classifies the argument value as NaN, infinite, normal, subnormal, zero
frexp Function	Overloaded. Gets the mantissa and exponent of _X
frexpf Function	Gets the mantissa and exponent of _X
hypot Function	Overloaded. Computes the square root of the sum of the squares of _X and _Y
hypotf Function	Computes the square root of the sum of the squares of _X and _Y
ilogb Function	Overloaded. Extract the exponent of _X as a signed int value
ilogbf Function	Extract the exponent of _X as a signed int value
isfinite Function	Overloaded. Determines whether the argument has a finite value
isinf Function	Overloaded. Determines whether the argument is an infinity
isnan Function	Overloaded. Determines whether the argument is a NaN
isnormal Function	Overloaded. Determines whether the argument is a normal
ldexp Function	Overloaded. Computes a real number from the mantissa and exponent
ldexpf Function	Computes a real number from the mantissa and exponent
lgamma Function	Overloaded. Computes the natural logarithm of the absolute value of gamma of the argument
lgammaf Function	Computes the natural logarithm of the absolute value of gamma of the argument
log Function	Overloaded. Calculates the base-e logarithm of the argument
log10 Function	Overloaded. Calculates the base-10 logarithm of the argument
log10f Function	Calculates the base-10 logarithm of the argument
log1p Function	Overloaded. Calculates the base-e logarithm of 1 plus the argument
log1pf Function	Calculates the base-e logarithm of 1 plus the argument
log2 Function	Overloaded. Calculates the base-2 logarithm of the argument
log2f Function	Calculates the base-2 logarithm of the argument
logb Function	Overloaded. Extracts the exponent of _X, as a signed integer value in floating-point format
logbf Function	Extracts the exponent of _X, as a signed integer value in floating-point format
logf Function	Calculates the base-e logarithm of the argument
modf Function	Overloaded. Splits _X into fractional and integer parts.
modff Function	Splits _X into fractional and integer parts.
nan Function	Returns a quiet NaN
nanf Function	Returns a quiet NaN
nearbyint Function	Overloaded. Rounds the argument to an integer value in floating-point format, using the current rounding direction.
nearbyintf Function	Rounds the argument to an integer value in floating-point format, using the current rounding direction.
nextafter Function	Overloaded. Determine the next representable value, in the type of the function, after _X in the direction of _Y
nextafterf Function	Determine the next representable value, in the type of the function, after _X in the direction of _Y
phi Function	Overloaded. Returns the cumulative distribution function of the argument
phif Function	Returns the cumulative distribution function of the argument
pow Function	Overloaded. Calculates _X raised to the power of _Y
powf Function	Calculates _X raised to the power of _Y
probit Function	Overloaded. Returns the inverse cumulative distribution function of the argument
probitf Function	Returns the inverse cumulative distribution function of the argument
rcbrt Function	Overloaded. Returns the reciprocal of the cube root of the argument
rcbrtf Function	Returns the reciprocal of the cube root of the argument
remainder Function	Overloaded. Computes the remainder: _X REM _Y
remainderf Function	Computes the remainder: _X REM _Y
remquo Function	Overloaded. Computes the same remainder as _X REM _Y. Also calculates the lower 23 bits of the integral quotient _X/_Y, and gives that value the same sign as _X/_Y. It stores this signed value in the integer pointed to by _Quo.
remquof Function	Computes the same remainder as _X REM _Y. Also calculates the lower 23 bits of the integral quotient _X/_Y, and gives that value the same sign as _X/_Y. It stores this signed value in the integer pointed to by _Quo.
round Function	Overloaded. Rounds _X to the nearest integer
roundf Function	Rounds _X to the nearest integer
rsqrt Function	Overloaded. Returns the reciprocal of the square root of the argument
rsqrtf Function	Returns the reciprocal of the square root of the argument
scalb Function	Overloaded. Multiplies _X by FLT_RADIX to the power _Y
scalbf Function	Multiplies _X by FLT_RADIX to the power _Y
scalbn Function	Overloaded. Multiplies _X by FLT_RADIX to the power _Y
scalbnf Function	Multiplies _X by FLT_RADIX to the power _Y
signbit Function	Overloaded. Determines whether the sign of _X is negative
signbitf Function	Determines whether the sign of _X is negative
sin Function	Overloaded. Calculates the sine value of the argument
sincos Function	Overloaded. Calculates sine and cosine value of _X
sincosf Function	Calculates sine and cosine value of _X
sinf Function	Calculates the sine value of the argument
sinh Function	Overloaded. Calculates the hyperbolic sine value of the argument
sinhf Function	Calculates the hyperbolic sine value of the argument
sinpi Function	Overloaded. Calculates the sine value of pi * _X
sinpif Function	Calculates the sine value of pi * _X
sqrt Function	Overloaded. Calculates the squre root of the argument
sqrtf Function	Calculates the squre root of the argument
tan Function	Overloaded. Calculates the tangent value of the argument
tanf Function	Calculates the tangent value of the argument
tanh Function	Overloaded. Calculates the hyperbolic tangent value of the argument
tanhf Function	Calculates the hyperbolic tangent value of the argument
tanpi Function	Overloaded. Calculates the tangent value of pi * _X
tanpif Function	Calculates the tangent value of pi * _X
tgamma Function	Overloaded. Computes the gamma function of _X
tgammaf Function	Computes the gamma function of _X
trunc Function	Overloaded. Truncates the argument to the integer component
truncf Function	Truncates the argument to the integer component

Requirements

Header: amp_math.h

Namespace: Concurrency

Concurrency::precise_math Namespace

Members

Functions

Requirements

See Also

Reference

Additional resources