1 #ifndef STAN_MATH_PRIM_MAT_ERR_CHECK_POS_SEMIDEFINITE_HPP
2 #define STAN_MATH_PRIM_MAT_ERR_CHECK_POS_SEMIDEFINITE_HPP
34 template <
typename T_y>
38 const Eigen::Matrix<T_y, Dynamic, Dynamic>& y) {
42 if (y.rows() == 1 && !(y(0, 0) >= 0.0))
43 domain_error(
function, name, y,
"is not positive semi-definite: ");
48 LDLT<Matrix<double, Dynamic, Dynamic> > cholesky
50 if (cholesky.info() != Eigen::Success
51 || (cholesky.vectorD().array() < 0.0).any())
52 domain_error(
function, name, y,
"is not positive semi-definite:\n");
bool check_not_nan(const char *function, const char *name, const T_y &y)
Return true if y is not NaN.
bool check_positive_size(const char *function, const char *name, const char *expr, const int size)
Return true if size is positive.
double value_of_rec(const fvar< T > &v)
Return the value of the specified variable.
bool check_pos_semidefinite(const char *function, const char *name, const Eigen::Matrix< T_y, Dynamic, Dynamic > &y)
Return true if the specified matrix is positive definite.
bool check_symmetric(const char *function, const char *name, const Eigen::Matrix< T_y, Dynamic, Dynamic > &y)
Return true if the specified matrix is symmetric.
void domain_error(const char *function, const char *name, const T &y, const char *msg1, const char *msg2)
Throw a domain error with a consistently formatted message.