//pow(x,2)
public static float ApproxExp2(float f)
{
uint param = (uint)((f + 127.0f) * 8388608.0f);
return(TypeTools.asfloat(param));
}
//log2(x)
public static float ApproxLog2(float param)
{
return((((float)TypeTools.asuint(param)) / 8388608.0f) - 127.0f);
}