KahanSum Class Reference

List of all members.

Public Member Functions
double	operator() (double &s, const double &d)

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Detailed Description

function class to calculate summation with Kahan's algorithm http://en.wikipedia.org/wiki/Kahan_summation_algorithm

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Member Function Documentation

double KahanSum::operator()	(	double &	s,
		const double &	d
	)		[inline]

performs Kahan's Compensated Summation; it is designed to used from accumulate() as a function object

Parameters:

s	initial value
d	value to add to s

Returns:

summation result

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

• ElementContainer.cc