plask::AccurateSum Class Reference

Allow to compute sum of doubles much more accurate than directly. More...

#include <plask/math.hpp>

Public Member Functions
	AccurateSum (double initial=0.0)
AccurateSum &	operator= (double v)
	AccurateSum (const AccurateSum &initial)=default
AccurateSum &	operator= (const AccurateSum &v)=default
AccurateSum &	operator+= (double v)
AccurateSum &	operator-= (double v)
	operator double () const
AccurateSum &	operator+= (const AccurateSum &other)

Detailed Description

Allow to compute sum of doubles much more accurate than directly.

It uses O(1) memory (stores 2 doubles) and all it's operation has O(1) time complexity.

It uses Kahan method http://en.wikipedia.org/wiki/Kahan_summation_algorithm

Definition at line 422 of file math.hpp.

Constructor & Destructor Documentation

AccurateSum() [1/2]

plask::AccurateSum::AccurateSum ( double  initial = 0.0 )

inline

Definition at line 428 of file math.hpp.

AccurateSum() [2/2]

plask::AccurateSum::AccurateSum ( const AccurateSum &  initial )

default

Member Function Documentation

operator double()

plask::AccurateSum::operator double ( ) const

inline

Definition at line 438 of file math.hpp.

operator+=() [1/2]

AccurateSum & plask::AccurateSum::operator+=

(

const AccurateSum &

other

)

Definition at line 46 of file math.cpp.

operator+=() [2/2]

AccurateSum & plask::AccurateSum::operator+=

(

double

v

)

Definition at line 52 of file math.cpp.

operator-=()

AccurateSum & plask::AccurateSum::operator-= ( double  v )

inline

Definition at line 436 of file math.hpp.

operator=() [1/2]

AccurateSum & plask::AccurateSum::operator= ( const AccurateSum &  v )

default

operator=() [2/2]

AccurateSum & plask::AccurateSum::operator=

(

double

v

)

Definition at line 20 of file math.cpp.

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The documentation for this class was generated from the following files:

• plask/math.hpp
• plask/math.cpp