Concurrency::fast_math Namespace
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 | Calculates the arccosine of the argument |
| cosf | Calculates the arccosine of the argument |
| asin | Calculates the arcsine of the argument |
| asinf | Calculates the arcsine of the argument |
| atan | Calculates the arctangent of the argument |
| atan2 | Calculates the arctangent of _Y/_X |
| atan2f | Calculates the arctangent of _Y/_X |
| atanf | Calculates the arctangent of the argument |
| ceil | Calculates the ceiling of the argument |
| ceilf | Calculates the ceiling of the argument |
| cos | Calculates the cosine of the argument |
| cosf | Calculates the cosine of the argument |
| cosh | Calculates the hyperbolic cosine value of the argument |
| coshf | Calculates the hyperbolic cosine value of the argument |
| exp | Calculates the base-e exponential of the argument |
| exp2 | Calculates the base-2 exponential of the argument |
| exp2f | Calculates the base-2 exponential of the argument |
| expf | Calculates the base-e exponential of the argument |
| fabs | Returns the absolute value of the argument |
| fabsf | Returns the absolute value of the argument |
| floor | Calculates the floor of the argument |
| floorf | Calculates the floor of the argument |
| fmax | Determine the maximum numeric value of the arguments |
| fmaxf | Determine the maximum numeric value of the arguments |
| fmin | Determine the minimum numeric value of the arguments |
| fminf | Determine the minimum numeric value of the arguments |
| fmod | Calculates the floating-point remainder of _X/_Y |
| fmodf | Calculates the floating-point remainder of _X/_Y |
| frexp | Gets the mantissa and exponent of _X |
| frexpf | Gets the mantissa and exponent of _X |
| isfinite | Determines whether the argument has a finite value |
| isinf | Determines whether the argument is an infinity |
| isnan | Determines whether the argument is a NaN |
| ldexp | Computes a real number from the mantissa and exponent |
| ldexpf | Computes a real number from the mantissa and exponent |
| log | Calculates the base-e logarithm of the argument |
| log10 | Calculates the base-10 logarithm of the argument |
| log10f | Calculates the base-10 logarithm of the argument |
| log2 | Calculates the base-2 logarithm of the argument |
| log2f | Calculates the base-2 logarithm of the argument |
| logf | Calculates the base-e logarithm of the argument |
| modf | Splits _X into fractional and integer parts. |
| modff | Splits _X into fractional and integer parts. |
| pow | Calculates _X raised to the power of _Y |
| powf | Calculates _X raised to the power of _Y |
| round | Rounds _X to the nearest integer |
| roundf | Rounds _X to the nearest integer |
| rsqrt | Returns the reciprocal of the square root of the argument |
| rsqrtf | Returns the reciprocal of the square root of the argument |
| signbit | Returns the sign of the argument |
| signbitf | Returns the sign of the argument |
| sin | Calculates the sine value of the argument |
| sincos | Calculates sine and cosine value of _X |
| sincosf | Calculates sine and cosine value of _X |
| sinf | Calculates the sine value of the argument |
| sinh | Calculates the hyperbolic sine value of the argument |
| sinhf | Calculates the hyperbolic sine value of the argument |
| sqrt | Calculates the square root of the argument |
| sqrtf | Calculates the square root of the argument |
| tan | Calculates the tangent value of the argument |
| tanf | Calculates the tangent value of the argument |
| tanh | Calculates the hyperbolic tangent value of the argument |
| tanhf | Calculates the hyperbolic tangent value of the argument |
| trunc | Truncates the argument to the integer component |
| truncf | Truncates the argument to the integer component |
Requirements
Header: amp_math.h
Namespace: Concurrency::fast_math