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squared_distance.hpp
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1 #ifndef STAN_MATH_PRIM_SCAL_FUN_SQUARED_DISTANCE_HPP
2 #define STAN_MATH_PRIM_SCAL_FUN_SQUARED_DISTANCE_HPP
3
4 #include <stan/math/prim/scal/err/check_finite.hpp>
5 #include <stan/math/prim/scal/fun/square.hpp>
6
7 namespace stan {
8 namespace math {
9
19 template<typename T1, typename T2>
20 inline typename boost::math::tools::promote_args<T1, T2>::type
21 squared_distance(const T1& x1,
22 const T2& x2) {
23 check_finite("squared_distance", "x1", x1);
24 check_finite("squared_distance", "x2", x2);
25 return square(x1 - x2);
26 }
27 }
28 }
29 #endif
stan
Definition: log_sum_exp.hpp:8
square.hpp
stan::math::square
fvar< T > square(const fvar< T > &x)
Definition: square.hpp:14
stan::math::squared_distance
fvar< T > squared_distance(const Eigen::Matrix< fvar< T >, R, C > &v1, const Eigen::Matrix< double, R, C > &v2)
Returns the squared distance between the specified vectors of the same dimensions.
Definition: squared_distance.hpp:30
stan::math::check_finite
bool check_finite(const char *function, const char *name, const T_y &y)
Return true if y is finite.
Definition: check_finite.hpp:60
check_finite.hpp

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