1 #ifndef STAN_MATH_REV_SCAL_FUN_INV_PHI_HPP 2 #define STAN_MATH_REV_SCAL_FUN_INV_PHI_HPP 13 class inv_Phi_vari :
public op_v_vari {
15 explicit inv_Phi_vari(vari* avi) :
16 op_v_vari(
inv_Phi(avi->val_), avi) {
19 static const double NEG_HALF = -0.5;
38 return var(
new inv_Phi_vari(p.
vi_));
fvar< T > inv_Phi(const fvar< T > &p)
Independent (input) and dependent (output) variables for gradients.
const double SQRT_2_TIMES_SQRT_PI
fvar< T > exp(const fvar< T > &x)
vari * vi_
Pointer to the implementation of this variable.