1 #ifndef STAN_MATH_FWD_SCAL_FUN_ERF_HPP
2 #define STAN_MATH_FWD_SCAL_FUN_ERF_HPP
var erf(const var &a)
The error function for variables (C99).
fvar< T > sqrt(const fvar< T > &x)
fvar< T > erf(const fvar< T > &x)
fvar< T > square(const fvar< T > &x)
const double TWO_OVER_SQRT_PI
fvar< T > exp(const fvar< T > &x)