derivative.hpp

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#ifndef STAN_MATH_MIX_FUNCTOR_DERIVATIVE_HPP
#define STAN_MATH_MIX_FUNCTOR_DERIVATIVE_HPP
 
#include <stan/math/rev/core.hpp>
#include <stan/math/fwd/core.hpp>
#include <stan/math/prim/fun/Eigen.hpp>
#include <vector>
 
namespace stan {
namespace math {
 
template <typename T, typename F>
void derivative(const F& f, const T& x, T& fx, T& dfx_dx) {
  fvar<T> x_fvar = fvar<T>(x, 1.0);
  fvar<T> fx_fvar = f(x_fvar);
  fx = fx_fvar.val_;
  dfx_dx = fx_fvar.d_;
}
 
}  // namespace math
}  // namespace stan
#endif