1 #ifndef STAN_MATH_FWD_SCAL_FUN_MODIFIED_BESSEL_FIRST_KIND_HPP 2 #define STAN_MATH_FWD_SCAL_FUN_MODIFIED_BESSEL_FIRST_KIND_HPP 14 return fvar<T>(modified_bessel_first_kind_z,
15 -v * z.
d_ * modified_bessel_first_kind_z / z.
val_
T d_
The tangent (derivative) of this variable.
fvar< T > modified_bessel_first_kind(int v, const fvar< T > &z)
T val_
The value of this variable.
This template class represents scalars used in forward-mode automatic differentiation, which consist of values and directional derivatives of the specified template type.