Fast Approximations for float Math Functions

Fast approximations for math functions on limited precision floats. More...

Functions
Float32	mi::math::fast_sqrt (Float32 i)
	A fast implementation of sqrt(x) for floats. More...
Float32	mi::math::fast_exp (Float32 x)
	A fast implementation of exp for floats. More...
Float32	mi::math::fast_pow2 (Float32 x)
	A fast implementation of pow(2,x) for floats. More...
Float32	mi::math::fast_log2 (Float32 i)
	A fast implementation of log2(x) for floats. More...
Float32	mi::math::fast_pow (Float32 b, Float32 e)
	A fast implementation of pow(x,y) for floats. More...

Detailed Description

Fast approximations for math functions on limited precision floats.

Include File:

#include <mi/math/function.h>

Function Documentation

Float32 mi::math::fast_exp ( Float32  x)

inline

A fast implementation of exp for floats.

Float32 mi::math::fast_log2 ( Float32  i)

inline

A fast implementation of log2(x) for floats.

Float32 mi::math::fast_pow ( Float32  b, Float32  e  )

inline

A fast implementation of pow(x,y) for floats.

Parameters

b	base
e	exponent

Float32 mi::math::fast_pow2 ( Float32  x)

inline

A fast implementation of pow(2,x) for floats.

Float32 mi::math::fast_sqrt ( Float32  i)

inline

A fast implementation of sqrt(x) for floats.