stormm::stmath::JfErfc Class Reference

Implement Norbert Juffa's fast erfc(alpha * x) approximation for 32-bit floating point computations. In the most prominent case for molecular dynamics, alpha corresponds to the "Ewald coefficient.". More...

#include <juffa.h>

Public Member Functions
	JfErfc (float alpha_in=1.0)
	The constructor requires a pre-factor for the argument that the object will eventually take in order to return erfc(alpha * x).
float	erfcJf (float x)
	Evaluate the approximate erfc(alpha * x) using all 32-bit floating-point arithmetic.

Detailed Description

Implement Norbert Juffa's fast erfc(alpha * x) approximation for 32-bit floating point computations. In the most prominent case for molecular dynamics, alpha corresponds to the "Ewald coefficient.".

Member Function Documentation

erfcJf()

float stormm::stmath::JfErfc::erfcJf

(

float

x

)

Evaluate the approximate erfc(alpha * x) using all 32-bit floating-point arithmetic.

Parameters

x	The function argument to evaluate

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

• src/Math/juffa.h
• src/Math/juffa.cpp