Concurrency::fast_math Namespace
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Functions in the fast_math namespace have lower accuracy, support only single-precision (float), and call the DirectX intrinsics. There are two versions of each function, for example cos and cosf. Both versions take and return a float, but each calls the same DirectX intrinsic.
Syntax
namespace fast_math;
Members
Functions
| Name | Description |
|---|---|
| cos Function (fast_math) | Calculates the arccosine of the argument |
| cosf Function (fast_math) | Calculates the arccosine of the argument |
| asin Function (fast_math) | Calculates the arcsine of the argument |
| asinf Function (fast_math) | Calculates the arcsine of the argument |
| atan Function (fast_math) | Calculates the arctangent of the argument |
| atan2 Function (fast_math) | Calculates the arctangent of _Y/_X |
| atan2f Function (fast_math) | Calculates the arctangent of _Y/_X |
| atanf Function (fast_math) | Calculates the arctangent of the argument |
| ceil Function (fast_math) | Calculates the ceiling of the argument |
| ceilf Function (fast_math) | Calculates the ceiling of the argument |
| cos Function (fast_math) | Calculates the cosine of the argument |
| cosf Function (fast_math) | Calculates the cosine of the argument |
| cosh Function (fast_math) | Calculates the hyperbolic cosine value of the argument |
| coshf Function (fast_math) | Calculates the hyperbolic cosine value of the argument |
| exp Function (fast_math) | Calculates the base-e exponential of the argument |
| exp2 Function (fast_math) | Calculates the base-2 exponential of the argument |
| exp2f Function (fast_math) | Calculates the base-2 exponential of the argument |
| expf Function (fast_math) | Calculates the base-e exponential of the argument |
| fabs Function (fast_math) | Returns the absolute value of the argument |
| fabsf Function (fast_math) | Returns the absolute value of the argument |
| floor Function (fast_math) | Calculates the floor of the argument |
| floorf Function (fast_math) | Calculates the floor of the argument |
| fmax Function (fast_math) | Determine the maximum numeric value of the arguments |
| fmaxf Function (fast_math) | Determine the maximum numeric value of the arguments |
| fmin Function (fast_math) | Determine the minimum numeric value of the arguments |
| fminf Function (fast_math) | Determine the minimum numeric value of the arguments |
| fmod Function (fast_math) | Calculates the floating-point remainder of _X/_Y |
| fmodf Function (fast_math) | Calculates the floating-point remainder of _X/_Y |
| frexp Function (fast_math) | Gets the mantissa and exponent of _X |
| frexpf Function (fast_math) | Gets the mantissa and exponent of _X |
| isfinite Function (fast_math) | Determines whether the argument has a finite value |
| isinf Function (fast_math) | Determines whether the argument is an infinity |
| isnan Function (fast_math) | Determines whether the argument is a NaN |
| ldexp Function (fast_math) | Computes a real number from the mantissa and exponent |
| ldexpf Function (fast_math) | Computes a real number from the mantissa and exponent |
| log Function (fast_math) | Calculates the base-e logarithm of the argument |
| log10 Function (fast_math) | Calculates the base-10 logarithm of the argument |
| log10f Function (fast_math) | Calculates the base-10 logarithm of the argument |
| log2 Function (fast_math) | Calculates the base-2 logarithm of the argument |
| log2f Function (fast_math) | Calculates the base-2 logarithm of the argument |
| logf Function (fast_math) | Calculates the base-e logarithm of the argument |
| modf Function (fast_math) | Splits _X into fractional and integer parts. |
| modff Function (fast_math) | Splits _X into fractional and integer parts. |
| pow Function (fast_math) | Calculates _X raised to the power of _Y |
| powf Function (fast_math) | Calculates _X raised to the power of _Y |
| round Function (fast_math) | Rounds _X to the nearest integer |
| roundf Function (fast_math) | Rounds _X to the nearest integer |
| rsqrt Function (fast_math) | Returns the reciprocal of the square root of the argument |
| rsqrtf Function (fast_math) | Returns the reciprocal of the square root of the argument |
| signbit Function (fast_math) | Returns the sign of the argument |
| signbitf Function (fast_math) | Returns the sign of the argument |
| sin Function (fast_math) | Calculates the sine value of the argument |
| sincos Function (fast_math) | Calculates sine and cosine value of _X |
| sincosf Function (fast_math) | Calculates sine and cosine value of _X |
| sinf Function (fast_math) | Calculates the sine value of the argument |
| sinh Function (fast_math) | Calculates the hyperbolic sine value of the argument |
| sinhf Function (fast_math) | Calculates the hyperbolic sine value of the argument |
| sqrt Function (fast_math) | Calculates the square root of the argument |
| sqrtf Function (fast_math) | Calculates the square root of the argument |
| tan Function (fast_math) | Calculates the tangent value of the argument |
| tanf Function (fast_math) | Calculates the tangent value of the argument |
| tanh Function (fast_math) | Calculates the hyperbolic tangent value of the argument |
| tanhf Function (fast_math) | Calculates the hyperbolic tangent value of the argument |
| trunc Function (fast_math) | Truncates the argument to the integer component |
| truncf Function (fast_math) | Truncates the argument to the integer component |
Requirements
Header: amp_math.h
Namespace: Concurrency::fast_math