_dawson _erfci _erfi _fresc _fress

_dawson() double _dawson ( double  x ) Dawson's function F(x) Purpose daws computes the Dawson's function F(x) = exp(-x^2) * ∫exp(t^2) dt [0, x] Returns Dawson's function F(x). Parameters [in] x Argument x. Error handling Range error (ERANGE) may occur.