FastInvSqrt.h File Reference

Detailed Description

Optimized implementation of 1/sqrt( double )

Author

Martin Bauer marti.nosp@m.n.ba.nosp@m.uer@f.nosp@m.au.d.nosp@m.e

#include "core/DataTypes.h"

Classes
union	walberla::math::DoubleAndLongLong
union	walberla::math::FloatAndLong

Namespaces
	walberla
	\file TimestepTracker.h \ingroup lbm \author Frederik Hennig frede.nosp@m.rik..nosp@m.henni.nosp@m.g@fa.nosp@m.u.de
	walberla::math

Functions
template<unsigned int numIter>
double	walberla::math::fastInvSqrt (double y)
	Computes 1.0 / sqrt(x) with limited accuracy. More...
template<unsigned int numIter>
float	walberla::math::fastInvSqrt (float y)
	Float version, for documentation see above. More...