AAX_FastPow.h File Reference

#include <cmath>
#include "AAX.h"

Go to the source code of this file.

Description

Set of functions to optimize pow.

To use:

const int kPowTableExtent = 9;      // Lower values are less precise. 9 is the maximum
float powTableH[kPowTableSize];
float powTableL[kPowTableSize];
int radix = 2;                      // This should be whatever radix you want. Ie: radix ^ exp
PowFastSetTable( powTableH, kPowExtent, kPowExtent, false ); // Set the high table
PowFastSetTable( powTableL, kPowExtent*2, kPowExtent, true );// Set the low table
..
result = powFastLookup(exp, log(2) / log(radix), powTableH, powTableL);

Namespaces
namespace	AAX

Macros
#define	_AAX_FASTPOW_H_

Variables
const unsigned int	AAX::kPowExtent = 9
const unsigned int	AAX::kPowTableSize = 1 << kPowExtent

Macro Definition Documentation

_AAX_FASTPOW_H_

#define _AAX_FASTPOW_H_