1 #ifndef STAN_MATH_REV_SCAL_FUN_FALLING_FACTORIAL_HPP 2 #define STAN_MATH_REV_SCAL_FUN_FALLING_FACTORIAL_HPP
falling_factorial_vd_vari(vari *avi, int b)
void chain()
Apply the chain rule to this variable based on the variables on which it depends. ...
The variable implementation base class.
Independent (input) and dependent (output) variables for gradients.
const double val_
The value of this variable.
fvar< T > falling_factorial(const fvar< T > &x, int n)
Return autodiff variable with the gradient and result of the falling factorial function applied to th...
vari * vi_
Pointer to the implementation of this variable.
double adj_
The adjoint of this variable, which is the partial derivative of this variable with respect to the ro...
fvar< T > digamma(const fvar< T > &x)
Return the derivative of the log gamma function at the specified argument.